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"dorsal" Definitions
  1. on or relating to the back of a fish or an animal

1000 Sentences With "dorsal"

How to use dorsal in a sentence? Find typical usage patterns (collocations)/phrases/context for "dorsal" and check conjugation/comparative form for "dorsal". Mastering all the usages of "dorsal" from sentence examples published by news publications.

Oral, dorsal, pedal, anal and supra-orbital glands produce individually distinct odors, and oral- and dorsal-gland odors are kin distinct.
"During sugar intake, suppressing hedonic value inhibited dopamine release in ventral, but not dorsal, striatum, whereas suppressing nutritional value inhibited dopamine release in dorsal, but not ventral, striatum," the neuroscientists write.
Although it had a typical melon-headed whale's dorsal fin shape and dorsal cape, it was also blotchy in pigmentation and had a sloping forehead, more reminiscent of a rough-toothed dolphin.
Dorsal is the crowdsourcing part of their mobile app ecosystem.
For instance, do you remember the Spirit's rotating dorsal receptacle?
His gloves sometimes have wings of leather, like dorsal fins.
The report included documentation of individual sharks by their dorsal fins.
The dorsal ones sense the colour and intensity of light filtering downwards.
In part, that's because he built another company, Dorsal, after leaving Mirantis.
My back hurts and I have grown an early-onset dorsal fin.
"Warsaw are characterized by an elongated second dorsal spine," the FWC said.
"The dorsal fin 2015/2017 comparison photo shows the mother's dorsal fin from 2015 and 2017 which helped us confirm it was the same dolphin we'd spotted in Monterey Bay in both 2015 and 2017," she told Gizmodo.
Then, the crew cinched the SmartTag in place around the shark's dorsal fin.
A countershaded animal has a dark dorsal surface and a light ventral one.
Instead, I fractured the 12th dorsal vertebra, right where the rib cage ends.
Specifically, the dorsal and ventral striatal regions, where humans process and experience pleasure.
Dorsal GPS is an app the team originally built for their partner Specialized Helicopters.
Apparently, this is the seventh position ever discovered — and it's called the dorsal straddle.
Place a transparent plastic ruler on the dorsal (upper side) surface of the penis.
It seems to have a grayish body, a white belly and a dorsal fin.
Late at night, the ids of his callers and guests flash like dorsal fins.
They have small eyes, up to 4 inches of blubber, and no dorsal fin.
Because the shirt is covering the dolphin's dorsal fin, the wildlife officers can't tell if the animal was previously tagged, nor can they identify it from a set of local dolphin photos (dorsal fins are like fingerprints—no two are the same).
At first, Charlie hires an avuncular softy (hilariously portrayed by Alan Alda) to represent him, but then is convinced to go with Jay (a fearsome and funny Ray Liotta), a shark all too willing to go dorsal fin-to-dorsal fin with Nora.
The dorsal fin coloration of the male is a circular red spot ringed with blue.
The dolphin, which lacks a dorsal fin, appears black with a white streak on its underbelly.
Lydia, a great white shark, has worn a satellite tracker on her dorsal fin since 2013.
Think of them as "oversized dorsal fins," NASCAR says, getting in the way of the air.
Exposure to loud sound therefore altered brain plasticity, leaving the dorsal cochlear nucleus in a compromised state.
Rosetti Superyachts' newest concept design mimics the appearance of a killer whale, down to the dorsal fin.
They also have more rounded heads and pointier dorsal fins compared to Type A, B, and C orcas.
"The virus can lay dormant in dorsal root ganglia, a cluster of nerves on the spine," Green says.
Our suspicions were right: exposure to loud sound prevented the dorsal cochlear nucleus from boosting its incoming signals.
The region, known as the dorsal raphe nucleus, or D.R.N., is best known for its link to depression.
By the time beachgoers caught sight of the sleek dorsal fin bisecting the water, it was too late.
Dorsal CMS is the app for moderators and volunteers who work with authorities to verify and edit public reports.
He was perched on the top of the Farley Mowat when he saw a vaquita's dorsal fin slowly surface.
The distinctive feature of the newcomers is a crop of fierce-looking spines jutting out of their dorsal plates.
When the shark's dorsal fin emerged, I thought I had the shot but hesitated a fraction of a second.
Another suggests that a wing simply grew out of the dorsal (or upper back) side of the body wall.
Every white cap is a head sticking out of the water, every piece of flotsam is a dorsal fin.
Observers spotted an adult vaquita last year and again this year, identified by distinctive markings on the dorsal fin.
They found a higher concentration of them on the dorsal side, suggesting the mouse had a lighter-colored belly.
Dorsal and ventral sides. 1. dorsal male; 2. dorsal female; 3. dorsal female (dark morph); 4.
In human anatomy, the dorsal veins of the penis comprise the superficial dorsal vein of the penis and the deep dorsal vein of the penis.
Abudefduf vaigiensis are white bluish with a yellow top. They have a black spot around their dorsal fin. It has yellow eyes. The dorsal fin on this fish has 13 dorsal spines and 11 to 14 dorsal soft rays.
Dorsal digital arteries arise from the bifurcation of dorsal metacarpal arteries. They travel along the sides and dorsal aspects of the phalanges of the middle finger, ring finger, and little finger. They communicate with the proper palmar digital arteries. They run with the dorsal digital nerves of ulnar nerve and dorsal digital nerves of radial nerve.
The body has both dorsal and ventral branched cirri, the dorsal ones being the larger.
Its long dorsal fin consists of 19 dorsal spines. Between the spines and rays of the dorsal fin is a notch. The anal fin consists of 2 spines and 19 segmented rays. Both the dorsal and anal spines are long, often flexible, and longest anteriorly.
H. formosissimus had a small, thin keel down the dorsal-center of its median dorsal plate.
Dorsal digital nerves of foot are branches of the intermediate dorsal cutaneous nerve, medial dorsal cutaneous nerve, sural nerve and deep fibular nerve. There are 10 total dorsal digital branches. \- The medial terminal branch (internal branch) divides into two dorsal digital nerves (nn. digitales dorsales hallucis lateralis et digiti secundi medialis) which supply the adjacent sides of the great and second toes, \- The medial dorsal cutaneous nerve (internal dorsal cutaneous branch) passes in front of the ankle-joint, and divides into three dorsal digital branches, one of which supplies the medial side of the great toe, the other, the adjacent sides of the second and third toes.
Segment 2 has a dorsal and a lateral stripe, broad at the base. Segment 3 has a dorsal stripe and a lateral wedge-shaped spot at the base. Segments 4 and 5 have a chain of three dorsal spots. Segment 6 has a single baso-dorsal spo.
C. supramacula can measure up to , counting with no dorsal spines, possessing 10 dorsal soft rays and 9 anal soft rays. It shows a conspicuous dark spot resembling an ocellus on the dorsal portion of its trunk, the dorsal portion of which extends towards its dorsal fin. It lacks dark stripes along the sides of the body like some of its cogenerate species, bearing two to four lines that extend from the caudal peduncle through the dorsal fin's base .
The dorsal carpal arch (dorsal carpal network, posterior carpal arch) is an anatomical term for the combination (anastomosis) of dorsal carpal branch of the radial artery and the dorsal carpal branch of the ulnar artery near the back of the wrist. It is made up of the dorsal carpal branches of both the ulnar and radial arteries. It also anastomoses with the anterior interosseous artery and the posterior interosseous artery. The arch gives off three dorsal metacarpal arteries.
All dorsal scales rhomboidal and imbricate (overlapping). Dorsal scales on neck smooth, arranged in 25 rows. Dorsal scales on body with a short keel or small tubercle, in 35 rows. Ventrals 329.
They have 10 dorsal spines, 9 dorsal soft rays, 2 anal spines, and 7 anal soft rays.
They have 10 dorsal spines, 9 dorsal soft rays, 2 anal spines, and 7 anal soft rays.
The dorsal ramus of spinal nerve (or posterior ramus of spinal nerve, or posterior primary division) is the posterior division of a spinal nerve. The dorsal ramus (Latin for branch, plural rami ) is the dorsal branch of a spinal nerve that forms from the dorsal root of the nerve after it emerges from the spinal cord. The spinal nerve is formed from the dorsal and ventral rami. The dorsal ramus carries information that supplies muscles and sensation to the human back.
The first dorsal fin is long-based and triangular, with the apex almost forming a right angle; the second dorsal fin is some two-thirds as high as the first. The origin of the first dorsal fin lies over the pectoral fin insertions, while that of second dorsal fin lies over the pelvic fin rear tips. No ridge exists between the dorsal fins. The anal fin is smaller than the second dorsal fin and has a strong notch in the rear margin.
The second dorsal fin is very long and sickle-shaped. The fish grows up to 50 cm long. The second dorsal fin is longer and sickle-shaped. Its dorsal fins have bony, knife-like spines.
Most of the dorsal metacarpal arteries arise from the dorsal carpal arch and run downward on the second, third, and fourth dorsal interossei of the hand and bifurcate into the dorsal digital arteries. Near their origin, they anastomose with the deep palmar arch by perforating arteries. They also anastomose with common palmar digital arteries (from the superficial palmar arch), also via perforating arteries. The first dorsal metacarpal artery arises directly from the radial artery before it crosses through the two heads of the first dorsal interosseous muscle.
The dorsal radioulnar ligament (posterior radioulnar ligament) extends between corresponding surfaces on the dorsal aspect of the distal radioulnar articulation.
Midbody, it has 23 rows of dorsal scales instead of 25, as well as fewer ventral scales and dorsal blotches.
Dorsal skin is granular- rugose and overlain with shagreen. Dorsal coloration is uniform or rarely blotched but without distinctive colors.
The species has 4-5 dorsal spines and 28-31 dorsal soft rays. It is usually dusky-greenish or silver.
For example, in a fish, the pectoral fins are dorsal to the anal fin, but ventral to the dorsal fin.
Head green with orange body segments. Dorsal band olive-greenish brown with a dark dorsal line. A double white line runs laterally which is same as dorsal color, whitish or orange. Spiracular band orange with purple suffusion.
It has 12 dorsal spines, 9 dorsal soft rays, three anal spines, and five soft rays. It often has a dark spot on its spinous dorsal spines between the 6th and 11th. It has long supraorbital tentacles.
Larva black with lateral tufts of reddish-brown hair. A sub-dorsal series of scarlet spots present. Dorsal, sub-dorsal, and lateral series of black spots also present. Somites 1st, 3rd, 4th and 5th with sub-lateral spots.
Scales on the body are ctenoid. The first dorsal fin is elongated and separated from the second dorsal fin. Both have a stiff first spine. The second dorsal fin and the anal fin are roughly the same size.
Ventral view, captive specimen Dorsal view, captive specimen The wingspan measures . P. e. mylotes is black with both sexes having a red patch on the dorsal hindwing. The dorsal forewing of the male has a triangular green patch.
Dorsal digital nerves of radial nerve are branches on the dorsum of the hand. They run with the dorsal digital arteries.
The dorsal pattern consists of rufous-colored spots outlined in black in 5-10 rows, with no dorsal or lateral stripes.
From here, the signal travels through the dorsal column–medial lemniscus pathway. The pathway is composed of the dorsal column within the spinal cord and the medial lemniscus in the brain stem. Collectively, the ascending sensory fibers are called the dorsal column because ascending fibers gather at the dorsal funiculus in the spinal cord.Dartmouth. (n.d.). Chapter 7 - Somatosensory Systems.
At the phalanges, the tendon forms a dorsal aponeurosis which is supplied by a digital branch of the first dorsal metacarpal artery.
It has a smooth head and prominent dorsal horn. It has a green mesothorax and broad yellow dorsal zones on the abdomen.
The dorsal vary in length from the of the first dorsal to the of the seventh, eight and ninth dorsals. Height in the vertebrae is also quite variable, with the shortest height being tall to tall, increasing from the first dorsal.
Segment 2 has a dorsal longitudinal stripe, broader at the center. Segment 3 has a large base-dorsal spot. Segments 4 to 6 have two dorsal triangular spots situated close to the base. Segment 7 has yellow nearly the basal half.
The dorsal and anal fins are colorless. Their second dorsal, anal and caudal fins rounded. In males, 1-3 soft dorsal fin rays extended as filaments; the first ray has a particularly long thread. The fish have a small abdominal spike.
The preoperculum is hooked and has four spines, on pointing forwards and the remaining three point backwards. There are two high dorsal fins, taller in males than in females, and the first dorsal fin in males is a little higher than the second dorsal fin. The first dorsal fin has four rays and the second has 9-10 rays. The anal fin is similar in size to the second dorsal fin and it has a long tail.
In juveniles of this species, the dorsal stripe is weak or absent. Large young have prominent dorsal and ventral spotting and yellow feet.
Brachymyrmex depilis casent0005338 dorsal 1.jpg Brachymyrmex depilis casent0005338 head 1.jpg Brachymyrmex depilis casent0102085 dorsal 1.jpg Brachymyrmex depilis casent0102085 head 1.
Posteriorly the expanded vanes of the gladius are visible in the dorsal view. Right: Ventral and dorsal views of a very advanced paralarva.
The third step is the regional expression of zygotic genes decapentaplegic (dpp), zerknüllt, tolloid, twist, snail, and rhomboid due to the expression of dorsal in the nucleus. High levels of dorsal are required to turn on transcription of twist and snail. Low levels of dorsal can activate the transcription of rhomboid. Dorsal represses the transcription of zerknüllt, tolloid, and dpp.
Males have a small dewlap and a dorsal crest made up of 56 large dorsal spines, making the animal sexually dimorphic. This dorsal crest consists of white and black spines arranged in alternating groups of two or three of the same color.
The little gulper shark has no anal fin, two dorsal fins with spines, slightly humped back before the first dorsal fin, darker areas of coloration above gills and on dorsal fins, long free rear tips on pectoral fins, and a notched caudal fin.
Redspotted catsharks have two dorsal fins, with the first dorsal axil over the pelvic region. Their dorsal fins do not have spines, and their tails have no upward bend. Redspotted catsharks have multicuspid teeth. However, males typically have longer teeth with fewer cusps.
The pectoral fin has a shallowly concave posterior margin. The first dorsal fin is moderately high, and both dorsal fin spines are very stout. Coloration is light grey above, paler below, with no white spots. The pale dorsal fins have dusky tips.
There is a series of dorsal tubercles from 4th to terminal somite. Purplish brown with sparse hairs, the thoracic somites pale above. Some pale lateral spots present. There is a dorsal black line with oblique dorsal streaks found on somites seven to ten.
The species name refers to the large dorsal process of the sacculus and is derived from Latin dorso- (meaning dorsal) and projectus (meaning prominent).
Adults usually have a rudimentary mid-dorsal line and para-dorsal stripes. The headspot, usually present among the related species, is very weakly developed.
They have 10–11 dorsal spines, 2 anal spines, 14–17 dorsal soft rays and 13–14 anal soft rays. They can grow to .
Posterior dorsal vertebra in rear and side views The dorsal vertebrae of NHMUK R3078 are incomplete or fragmentary. A partial anterior dorsal is known from a single centrum, which is about as long as wide, with a strong anterior articular ball (an opisthocoelous condition). On the lateral surfaces (sides) of the centrum there are deep but small pleurocoels (depressions in the sides of vertebrae for air sacs). A single middle dorsal centrum is preserved, being slightly smaller than the anterior dorsal.
Fish of this family have dorsal fins covered by skin. An adipose fin is also present, and is fused with the caudal fin in some species. The dorsal fin base is short and the dorsal fin spine is weak. The anal fin base is short.
Dorsal turret. ;FC.20ter: As FC.20 with 745 kW (1,000 hp) Fiat A.80 R.C.41 twin row 18-cylinder radial engines. Dorsal turret. ;FC.20quater: As FC.20bis with 935 kW (1,250 hp) Daimler-Benz DB 601 inverted V-12 engines. Dorsal turret.
It has 10 dorsal spines, 14 soft dorsal rays, three anal spines and eight to 9 anal soft rays. Juvenile fish (shorter than 30–35 cm) can also have a dark spot on their sides, below the anterior soft dorsal rays, which fades with age.
Male with elongated second dorsal spine preserved, from Koror, Palau, Bluestripe pygmygobies are tiny fish, usually averaging at . The maximum recorded length is . The dorsal fin has seven spines and eight to nine soft rays. The second dorsal spine in males is elongated and filamentous.
Harvestfish have 2-5 total dorsal spines, 38-47 total soft dorsal rays, 2-3 anal spines, and 35-45 soft anal rays. The Harvestfish also lacks the mucous pores situated below the anterior half of the dorsal fin that are conspicuous in the butterfish.
Zingel zingel is distinguished has two separate dorsal fins with 13-15 spines in the first dorsal fin and 18-20 soft rays in the second dorsal fin. There are no scales on the cheeks. They grow to in length with a maximum length of .
Miosynechodus is known from one specimen, a single dorsal spine which measures in overall length, a width of and a depth of . This dorsal spine is noted to have had five longitudinal grooves in its dorsal spine. This spine had been preserved in DPC.
The dorsal fins have 9 dorsal spines and 10 soft rays, whereas the anal fin has three anal spines and seven or eight soft rays.
Juveniles are dark with a red nape, upper back and spiny dorsal fin, and a dark ocellus at the rear base of the dorsal fin.
Of equids other than horses, all except the mountain zebra show a distinct dorsal stripe. Among domesticated donkeys, most have a black dorsal stripe, though it can be difficult to see on melanistic individuals. In the African wild ass, the dorsal stripe is thin but distinct and black. In Przewalski's horse, the dorsal stripe is usually dark brown, while it is black in the bred-back tarpan.
Body cavities: Dorsal body cavity is to the left. The dorsal body cavity is located along the dorsal (posterior) surface of the human body, where it is subdivided into the cranial cavity housing the brain and the spinal cavity housing the spinal cord. The two cavities are continuous with one another. The covering and protective membranes for the dorsal body cavity are the meninges.
These small scales give the Atlantic mackerel a velvet-like feel. The two dorsal fins are large and spaced far apart. The second dorsal fin is typically followed by 5 dorsal finlets, though it can have 4 or 6. The anal fin, which originates slightly behind the second dorsal fin, is similar to it in size and shape and is also succeeded by 5 finlets.
This is not how flies actually turn. Mureli and Fox (2015) showed that flies are still capable of performing planned turns even when their halteres have been removed entirely. Diagram of the six major fields of campaniforms on the haltere. Four fields are located dorsally -- the dorsal Hick's papillae (dHP), dorsal basal plate (dBP), dorsal scapal plate (dSP), and the dorsal flanking sensilla (FS).
Family members are distinguished by having a laterally compressed body shape, 3 to 8 anal spines, and 2 dorsal fins (spinous first dorsal and rayed second dorsal) which are fused. The number of dorsal spines varies from 6 to 13. All species in Micropterus and Lepomis have 3 anal spines, which distinguishes them from the other genera in the family. The pseudobranch is small and concealed.
The dorsal vertebrae have ridges on the sides of their bottom faces as in Diamantinasaurus and Opisthocoelicaudia, but Savannasaurus lacks the keel on the bottom of the dorsal vertebrae as in these species; the dorsal neural spines are also not split into two, unlike Opisthocoelicaudia. The known cervical vertebrae and dorsal vertebrae are opisthocoelous, while all of the caudal vertebrae are amphicoelous unlike most other titanosaurs.
The Prince Regent gudgeon is a freshwater fish. It is known to inhabit clear, rocky pools with slow to moderate flow. Their males and females differ as the female fish are lighter colored, with their truncate fin and dorsal fin well separated. The males are larger, with a rounded caudal fin, prolonged dorsal and anal rays and the first dorsal membrane almost touching the second dorsal.
The caudal fin is forked and homocercal (upper and lower lobes of equal length). The dorsal fin contains at least 8 fin rays. The anal fin is larger than the dorsal fin and also bears at least 8 rays. The scales vary greatly in size and shape, with a series of large plate-like scutes along the dorsal and ventral midline behind the dorsal and anal fin.
The fingers and toes have small discs; the fingers have no webbing while the toes are partially webbed. Dorsal skin is smooth. The dorsal color pattern consists of longitudinal stripes: two parallel dark- brown dorsal stripes, mottled with cream dots, run from the head to the inguinal region, parallel with one mid-dorsal stripe and a pair of dorsolateral stripes of cream to bronze color.
The ornate rainbowfish is a small, slender and rather elongated species of rainbowfish. It has two dorsal fins that are only narrowly separated, and the first dorsal fin is considerably smaller than the second. There are 3 to 5 thin, soft spines in the first dorsal fin while the second dorsal fin has 11–15 segmented rays. This species is highly variable in colour over its range.
The dorsal nerve of the clitoris is analogous to the dorsal nerve of the penis in males. It is a terminal branch of the pudendal nerve.
They have 9-10 dorsal spines, 2 anal spines, 16-18 dorsal soft rays and 13-15 anal soft rays. They reach a maximum length of .
The body of adults are generally red-orange with a single white bar. The snout and breast are orange. Each of the caudal, dorsal and anal fins are orange. They have 10 dorsal spines, 2 anal spines, 16-18 dorsal soft rays and 14 anal soft rays.
Sphaerodactylus richardi may attain a snout-to-vent length (SVL) of . It has large non-overlapping dorsal scales, except for a zone of mid-dorsal granular scales which is three scales wide. Adults have a dorsal color pattern of 5-6 bold dark crossbands on the body.
Both a dorsal and lateral stripe are present. A large dark spot is present on the dorsal fin and the anal fin is yellow with blue stripes.
The most basal segment, or coxae, are subtriangular. Their abdomen has nine rows of two- dorsal central abdominal seta and one fairly long dorsal lateral abdominal seta.
The ventral surface of this fish is darker than the head and dorsal surface, and the pectoral, dorsal and anal fins are pale with yellowish-white edges.
Overosaurus was described and named by Rodolfo A. Coria, Leonardo S. Filippi, Luis M. Chiappe, Rodolfo García and Andrea B. Arcucci in 2013. This species is known solely from the holotype MAU-Pv-CO-439 which consists of a fully articulated vertebral series from the 10th cervical to the 20th caudal vertebra, the ribs of the last three cervical vertebrae, six right dorsal ribs (articulated with their respective dorsal vertebrae 2,3,4,5,8,9), five left dorsal ribs (articulated with their respective dorsal vertebrae 2,3,4,5,8), the proximal portions of dorsal ribs of both sides of dorsal vertebrae 9 and 10, a complete right ilium and a fragmented left ilium. Specifically the vertebral series includes the last four cervical vertebrae, ten dorsal vertebrae, six sacral vertebrae, and twenty caudal vertebrae. Its sacrum consists of six fused sacral vertebrae.
The dorsal interossei abduct at the metatarsophalangeal joints of the third and fourth toes. Because there is a pair of dorsal interossei muscles attached on both sides of the second toe, simultaneous contraction of these muscles results in no movement. This arrangement of dorsal interossei makes the second toe the midline of the foot, whereas the midline of the hand (marked by dorsal interossei of hand) is in the third finger. Abduction is of little importance in the foot, but, together with the plantar interossei, the dorsal interossei also produce flexion at the metatarsophalangeal joints.
The large colon, small colon, and rectum make up the remainder of the large intestine. The large colon is long and holds up to of semi-liquid matter. It is made up of the right ventral (lower) colon, the left ventral colon, the left dorsal (upper) colon, the right dorsal colon, and the transverse colon, in that order. Three flexures are also named; the sternal flexure, between right and left ventral colon; the pelvic flexure, between left ventral and left dorsal colon; the diaphragmatic flexure, between left dorsal and right dorsal colon.
Parts of six dorsal vertebrae are preserved: one partial anterior dorsal vertebral neural arch, one partial dorsal vertebral centrum, three posterior dorsal vertebrae that are nearly complete but currently heavily reconstructed with plaster, and one that has been plastered into the sacrum. None of the dorsal vertebrae have observable neurocentral sutures. Sacrum A nearly complete sacrum consisting of six vertebrae was recovered from the quarry, originally only lacking some ribs. The original description of Huabeisaurus suggested that only five sacral vertebrae were present based on the number of sacral ribs and intercostal foramina.
The dorsal fin continuous with a very short first spine, there are a 10 spines which progressively become higher towards the tail, the first rays in the soft-rayed portion of the dorsal fin is only slightly higher than the spiny portion giving the dorsal fin an almost straight profile. The soft-rayed part of the dorsal fin contains 26-28 soft rays. The anal fin has 3 spines and 27-28 soft rays. The soft portion of the dorsal fin is notably longer than they spiny portion.
The intrinsic muscles of the foot, muscles whose bellies are located in the foot proper, are either dorsal (top) or plantar (sole). On the dorsal side, two long extrinsic extensor muscles are superficial to the intrinsic muscles, and their tendons form the dorsal aponeurosis of the toes. The short intrinsic extensors and the plantar and dorsal interossei radiates into these aponeuroses. The extensor digitorum brevis and extensor hallucis brevis have a common origin on the anterior side of the calcaneus, from where their tendons extend into the dorsal aponeuroses of digits 1–4.
In vertebrates, the dorsal nerve cord is modified into the central nervous system, which comprises the brain and spinal cord. Dorsal means the "back" side, as opposed to ventral which is the "belly" side of an organism. In bipedal organisms dorsal is the back and ventral is the front. In organisms which walk on four limbs the dorsal surface is the top (back) and the ventral surface is the bottom (belly).
The dorsal lip of the developing gastrula was thus denoted as the Spemann- Mangold organizer for its role in neural induction and organization of developing neural tissues. Interest then shifted to identifying the chemical mechanisms underlying the dorsal lip’s organizer function. Future experiments using a series of injections of dorsal lip mRNA into irradiated embryos demonstrated that the dorsal lip contained genetic factors that were sufficient for neural induction.
The spiny dorsal fin is placed halfway down the body and is detached from the soft dorsal fin. The soft dorsal fin extends down the body and ends shortly before the caudal fin. The anal fin mirrors the soft dorsal fin down the underside of the body before the caudal fin. The shape of the caudal fin varies based on family, but is generally either rounded, forked or truncate.
The first dorsal fin is triangular, uncurved, and moderately sized, and the second dorsal fin is much smaller than the first and bears a large black patch at its apex. The whitecheek shark's dorsal (upper) surface is grey or brownish-grey, while its ventral (under) surface is pale.
Centre: Ventral, dorsal and side views of a more advanced paralarva. An equatorial circulet of seven large yellow-brown chromatophores is present on the mantle. Posteriorly the expanded vanes of the gladius are visible in the dorsal view. Right: Ventral and dorsal views of a very advanced paralarva.
Its peristomium shows a dorsal fold partly covering the prostomium. It counts with one pair of tentacular cirri, which are shaped like the antennae but are shorter. Its second chaetiger lacks dorsal cirri but has a large papilla instead. The dorsal cirri are shaped similarly to the tentacular cirri.
The dorsal surfaces are finely tuberculate. The back bears several narrow, elongate, dermal folds. The ground color of the dorsal surfaces is light to dark brown. Indistinct darker bars and spots are present on the upper lip; the supratympanic fold and some dorsal skin folds are dark brown.
The dorsal and ventral surfaces are very variable. The dorsal surface may be smooth, warty or have longitudinal skin folds. The colour varies from dark brown, fawn, light and dark grey. The colour of the ventral surface is similar to the dorsal surface, but mottled with white spots.
The dorsal root ganglia lie in the intervertebral foramina. The anterior and posterior spinal nerve roots join just beyond (lateral) to the location of the dorsal root ganglion.
The dorsal lip of the blastopore is the mechanical driver of gastrulation. The first sign of invagination seen in this video of frog gastrulation is the dorsal lip.
The decoy scorpionfish has been noted on multiple accounts to display a unique prey-luring mechanism, involving the movement of its dorsal fin. The form of I. signifer's dorsal fin strongly resembles that of a small fish, with the fourth dorsal spine representing the dorsal fin of the lure fish, and a small black dot between dorsal spines 1-3 representing the eye. The decoy scorpionfish has developed a method of moving this fin so that it also behaves like a fish would. By moving the first dorsal spine in a figure-eight like pattern, the rest of the fin follows in a wave-like pattern of movement, while also moving laterally from side to side.
Chinlechelys can be distinguished from both derived amniotes and primitive turtles based on the below features, noticed by Joyce et al.: the presence of a plastron, carapace and multi- element neck and tail armour; a dorsal centra hourglass-shaped, platycoelous, and with a distinct ventral keel; dorsal ribs in contact two dorsal vertebrae; the appearance of compressed dorsal ribs that are oriented vertically and only lightly associated with overlying dermal armour; a double contact between the dorsal vertebrae and dorsal ribs only incipient; the carapace and most of plastron laminar in thickness; a carapace with distinct medial ridge that widens towards the end; a plastron with a sloping inguinal notch; and neck armour prongs forming an angular cone.
The dorsal pelage is grayish-brown to a dirty brown. The dorsal hairs are dark gray and gray at the tip. The ventral pelage is lighter, and the ventral hairs are pale gray or brown with a whitish tip. The dorsal pelage on the orange phase is tawny-orange to cinnamon.
This species is similar to the Tippecanoe darter but has scales on cheek behind the eye, 2nd dorsal under the 1st dorsal fin.. The golden darter has a gold margin to the 1st dorsal fin and the body is orange in color marked with vertical dark bars towards the tail.
This species is distinguished from other species of the C. irregularis complex by its absence of enlarged, conical tubercles on its dorsal tail-base; the presence of flat and rounded dorsal tubercles; the pale dorsal head surface pattern lacks dark brown irregular spots with light edges; and it possesses elongated limbs.
The dorsal osteoderms of the lumbar region are fused to double headed ribs. All osteoderms are rectangular and overlap each other. Microchampsa was named in 1951 on the basis of an incomplete skeleton consisting of cervical and anterior dorsal vertebrae as well as ribs and three rows of dorsal osteoderms.
Department of the Environment and Water Resources. Morphological differences include skull shape, presence or absence of a median dorsal groove in front of the dorsal fin, height of dorsal fin, and coloration. Genetic analysis constitutes a 5.9% difference between the two populations.Beasley, I., Robertson, K. M. and Arnold, P.. 2006.
The female is more full bodied and the male has a larger dorsal fin. The male is distinguished by longer extended dorsal and anal fins. The dorsal fin is elongated into a sickle shape that arches to the length of the tail base. The female has a shorter rounded fin.
The first dorsal fin is positioned closer to the pelvic than the pectoral fins, which are very short and broad. The second dorsal fin is much smaller than the anal fin. No ridge occurs between the dorsal fins. The back is bronze-gray in color, and the belly is white.
The maximum length for this fish is . Its fins have 13 dorsal spines, 14 to 16 dorsal rays, 2 anal spines, and 15 to 16 anal rays. This fish is orange on the top and blue or bluish gray on the bottom. On the dorsal fin, there is a black spot.
The dorsal scapular vein is a vein which accompanies the dorsal scapular artery. It usually drains to the subclavian vein, but can also drain to the external jugular vein.
Ventral view This species has five, slender, tapering arms. There are regular, longitudinal and transverse rows on the dorsal side. The ventral side is paler than the dorsal side.
The pectoral, pelvic, and spinous dorsal fins are hyaline to dusky, while the second dorsal fin is yellow distally. The caudal and anal fins are yellow to dusky yellow.
Dorsal surface of postorbitofrontal wide. Parietal foramen small and located close to fronto- parietal suture. Parietal table transversely narrow. Sagittal ramus of parietal hour-glass-shaped in dorsal view.
Mature specimens often lack any dorsal pattern, while the dorsal patterns of juveniles are more pronounced.Mehrtens JM (1987). Living Snakes of the World in Color. New York: Sterling Publishers.
Dorsal stripes on dun horses with the cream gene seem unaffected by cream: smoky black-duns ("smoky grullas"), buckskin-duns ("dunskins"), and palomino-duns ("dunalinos") have black, brown, or red dorsal stripes, as well. So-called "countershading dorsals", which are dorsal stripes occurring on non-dun horses, are a darker shade of the horse's coat color. Countershading dorsal stripes may be seasonal, waning, or disappearing altogether during a particular time of year.
The maternal protein, Dorsal, functions like a graded morphogen to set the ventral side of the embryo (the name comes from mutations which led to a dorsalized phenotype). Dorsal is like bicoid in that it is a nuclear protein; however, unlike bicoid, dorsal is uniformly distributed throughout the embryo. The concentration difference arises from differential nuclear transport. The mechanism by which dorsal becomes differentially located into the nuclei occurs in three steps.
The pectoral fins are moderate in size, with somewhat pointed tips and nearly straight trailing margins. The pelvic fins are small, with short claspers in males. The first dorsal fin has a narrowly curved apex, while the second dorsal fin is much smaller and lower. The first dorsal fin origin lies over the rear half of the pelvic fin bases, while the second dorsal fin origin lies slightly behind the anal fin origin.
Males may be patternless or have reticulations or chevron patterns on the dorsal surface. Females are duller than males, and may have a mid-dorsal stripe or dark chevron markings.
Dorsal colouration is cryptic, brown. A pale oblique lateral stripe is present (but may be broken or incomplete). Dorsal skin is granular posteriorly. In adult males, third finger is swollen.
Caudal autotomy septa are absent. For A. skrbinensis, there were 10 cervical vertebrae, 30 dorsal vertebrae, and 2 sacral vertebrae. The body of the dorsal vertebrae presents a procoelous pattern.
The dorsal fin is more than twice the length of the anal fin. The dorsal origin is nearer to the tip of the snout than to the caudal fin base.
The ninth rib is epineural. The lateral-line scales contain 23–24 pores. There are 9 dorsal spines, 9 dorsal soft rays, 2 anal spines, and 2 anal soft rays.
Larva apple green; paired dorsal and lateral yellow spinous tubercles on each somite except the last; dorsal yellow hairs; lateral and ventral black hairs; the pad to anal claspers rufous.
870 pp. 1,500 plates. . At midbody, the rows of dorsal scales usually number 23. The dorsal pattern consists of a series of oval or subcircular spots with reasonably regular edges.
The amount of dark pigment in the fins is sexually dimorphic, with males developing darker spinous dorsal fin, lobes of soft dorsal and anal fins, and pelvic fins than females.
The haddock, a type of cod, is ray-finned. It has three dorsal and two anal fins. heterocercal caudal fin. The dorsal portion is usually larger than the ventral portion.
It is distinguished from other genera in the Amycoida clade by the deep prolateral excavation on the dorsal surface of the cymbium of the male pedipalp, forming a dorsal keel.
The first dorsal fin is medium- sized and slightly raked. The second is similarly shaped, but a bit smaller. The pectoral fins are fairly large. Both dorsal spines are long.
The fins are all hyaline in appearance except for the dorsal fin which becomes dusky terminally with 5 or 6 rows of dusky spots on the soft dorsal fin membrane.
Anomaloglossus are characterized by cryptic dorsal coloration (brown or gray). Dorsal skin is posteriorly granular. The toes are webbed, ranging from basal to extensive. The fingers have weakly expanded discs.
Body with 3–5 irregular vertical bars on anterior half. There are 14–17 pre-dorsal scales and 10–11 branched dorsal-fin rays. Danionin notch present. Lateral line complete.
The dorsal surface is brown with a darker brown mid-dorsal line extending from the first pair of oncopods to the anus. The ventral surface is slightly lighter brown than the dorsal surface. There are 24 pairs of oncopods. The type specimen was 52 mm in length, and 6 mm in width.
The arrowhead dogfish has an extremely long angular snout, no anal fin, small first dorsal and long rear dorsal spines, and pitchfork-shaped dermal denticles. The first dorsal fin is short and placed high on the back. This is the smallest of the genus Deania, with a maximum length of only 76 cm.
Segment 2 has a mid-dorsal stripe and two spots on each side. Segments 3 to 6 have a pair of sub-dorsal basal spots. Segment 7 is with the basal half yellow with a black dorsal carina and a basal black ring. Segment 8 has a sub-basal spot on each side.
Opercular opening extending above pectoral fin base. Pectoral fin soft rays 10 (rarely 11). Dorsal fin spines 2-6, isolated (with small triangular fin membrane), directed posteriorly and not inclined from middorsal line, and depressible in shallow groove. First dorsal spine shortest and last one longest. Dorsal fin soft rays 8-11.
Some bands fuse together forming "Z" or "Y" shaped markings. Each dorsal scale has a pale central portion which results in fine longitudinal striations along the dorsal surface. The ventral surface is whitish, sometimes spotted with small spots of dark colour or with larger rounded dark patches, usually aligned with a dorsal bar.
Polynemus aquilonaris is a medium- sized species of threadfin which attains a maximum total length of . It has a pointed snout and a dorsal profile which is nearly straight. There are two separate dorsal fins, the first dorsal fin with 8 spines in which the bases of the spines have a similar thickness and the second dorsal fin has a single spine and 15 to 19 soft rays. The anal fin has 3 spines and 11 to 13 soft rays and it has a base that is shorter then the base of the second dorsal-fin base.
It is possible that the sail of Spinosaurus was used for courtship, in a way similar to a peacock's tail. Stromer speculated that the size of the neural spines may have differed between males and females. Gimsa and colleagues (2015) suggest that the dorsal sail of Spinosaurus was analogous to the dorsal fins of sailfish and served a hydrodynamic purpose. Gimsa and others point out that more basal, long-legged spinosaurids had otherwise round or crescent-shaped dorsal sails, whereas in Spinosaurus, the dorsal neural spines formed a shape that was roughly rectangular, similar in shape to the dorsal fins of sailfish.
Formation of the dorsal- ventral axis is dependent on the ventral nuclear concentration of a maternally synthesized transcription factor called Dorsal. The determination of the dorsal side of the embryo occurs during oogenesis when the oocyte nucleus moves along microtubules from the posterior to the anterior-dorsal margin of the oocyte. The nucleus expresses a protein called Gurken which is secreted locally and thus only activates follicle cells in the dorsal region by interacting with the Torpedo receptor. This inhibits the production of Pipe protein and thus follicular cells expressing Pipe are on the ventral side.
The dorsal aortae are paired (left and right) embryological vessels which progress to form the descending aorta. The paired dorsal aortae arise from aortic arches that in turn arise from the aortic sac. The primary dorsal aorta is located deep to the lateral plate of mesoderm and move from lateral to medial position with development and eventually will fuse with the other dorsal aorta to form the descending aorta. Each primitive aorta anteriorly receives the vitelline vein from the yolk-sac, and is prolonged backward on the lateral aspect of the notochord under the name of the dorsal aorta.
Spotted sand-divers reach a maximum length of . They have 39 to 41 soft dorsal spines. Males can be distinguished from females by their long dorsal fin rays and larger size.
Sexes show sexual dimorphism. Male has dark brown dorsal surface, whereas female pale brown coloration. In male, dorsal surface is unmarked except few small dark eyespots. Ventral surface is heavily shaded.
Vertebral scales are not enlarged. Dorsal scales are smooth or feebly keeled. Dorsal side is greenish yellow or pale green. Orange to red spots can be seen between dark cross bands.
The dorsal calcaneocuboid ligament (superior calcaneocuboid ligament) is a thin but broad fasciculus, which passes between the contiguous surfaces of the calcaneus and cuboid, on the dorsal surface of the joint.
Dorsal tubercles are flattened, and claws long. Scales under fourth toe 7–9. Mental subtriangular, midbody scale rows 26–27. About 7 or 8 rows flattened of dorsal tubercles at midbody.
The dorsal nerve cord is a unique feature to chordates, and it is mainly found in the Vertebrata chordate subphylum. The dorsal nerve cord is only one embryonic feature unique to all chordates, among the other four chordate features-- a notochord, a post-anal tail, an endostyle, and pharyngeal slits. The dorsal hollow nerve cord is a hollow cord dorsal to the notochord. It is formed from a part of the ectoderm that rolls, forming the hollow tube.
A dorsal root ganglion (or spinal ganglion; also known as a posterior root ganglion) is a cluster of neurons (a ganglion) in a dorsal root of a spinal nerve. The cell bodies of sensory neurons known as first-order neurons are located in the dorsal root ganglia. The axons of dorsal root ganglion neurons are known as afferents. In the peripheral nervous system, afferents refer to the axons that relay sensory information into the central nervous system (i.e.
The body is slim and streamlined, with a very tall, narrow, and falcate (sickle-shaped) first dorsal fin that originates over the bases of the rather small pectoral fins. The second dorsal fin is much smaller and originates over the aft third of the anal fin base. The anal fin is about half again as long as the second dorsal fin. A lengthwise groove is on the caudal peduncle at the dorsal origin of the caudal fin.
The third dorsal striae is broader and more distinct. The dorsal margin has a broad white band extending from the base to the tornal area and there is a narrow silvery-white fascia with metallic reflection from the costal six-seventh to the dorsal margin. The distal one-seventh is yellowish brown, with a central black dot and with a triangular white dot near the costa and a white streak along the dorsal margin. The hindwings are greyish brown.
The second dorsal stria is longest and extends to six-seventh. The dorsal margin has a broad white band from the base to the tornus and there is a silvery-white fascia with metallic reflection from the costal six-seventh to the dorsal margin, nearly straight. The distal one-seventh is ochreous, with a central black dot, with a white dot at the costa and a broad white streak along the dorsal margin. The hindwings are grey.
During development, the duodenum rotates to the right, and the ventral bud rotates with it, moving to a position that becomes more dorsal. Upon reaching its final destination, the ventral pancreatic bud is below the larger dorsal bud, and eventually fuses with it. At this point of fusion, the main ducts of the ventral and dorsal pancreatic buds fuse, forming the main pancreatic duct. Usually, the duct of the dorsal bud regresses, leaving the main pancreatic duct.
A spiracle is present, but small. The dorsal ends of the fourth and fifth branchial arches are attached, but not fused into a "pickaxe" as in lamniform sharks. Heterodontiforms have two dorsal fins, with fin spines, as well as an anal fin. The dorsal and anal fins also contain basal cartilages, not just fin rays.
The pectoral fins are distinctively large and triangular, with rounded to pointed tips. The large first dorsal fin originates over the rear of the pectoral fin bases. The second dorsal fin is relatively tall and long, and originates over or slightly behind the anal fin origin. There is no ridge between the dorsal fins.
The pectoral fins, second dorsal fin, and lower caudal fin lobe are prominently tipped in black, while the first dorsal fin and dorsal caudal fin lobe are narrowly edged in black. The maximum size reached by the Pondicherry shark is uncertain due to a lack of large specimens, but is probably not much greater than .
This demersal fish has alternating black and yellow stripes with small white spots laterally The mature animal is in length. Dorsal coloration consists of alternating black and yellow stripes with small white spots laterally. The ventral surface is cream-colored. The fish has 11–12 dorsal spines, 18–23 dorsal soft rays and 35 vertebrae.
The body is strongly compressed laterally. The dorsal fins are situated approximately in the middle of the body. The first dorsal fin (with five to six rays) is arched and originates from the highest point of the back of the fish. It has thinner rays than the second dorsal fin (with seven to eight rays).
The siphuncle is subcentral, ventral of the dorsal septal flexture. The suture is simple, goniatitic, with essentially symmetrical, undivided lobes. The ventral lobe is moderately wide, lanceolate or linguate, tongue-shaped; the dorsal lobe deep and narrow. The lateral and umbilical lobes (2 pairs) are broad, the internal lobes narrow and close to the dorsal.
This male (Tilikum), at SeaWorld Orlando, had a collapsed dorsal fin. Most captive male killer whales, and some females, have a dorsal fin that is partially or completely collapsed to one side. Several hypotheses exist as to why this happens. A dorsal fin is held erect by collagen, which normally hardens in late adolescence.
Adults of this species can grow up to a maximum length of up to . They have 13 dorsal spines, 15 to 16 dorsal soft rays, 2 anal spines, and 13 to 15 dorsal soft rays. Like most species of the genus Neoglyphidodon, juveniles and adults of this species have different colouration. Adults are black.
Dorsal fin diagram with landmarks labeled. Most sharks have eight fins: a pair of pectoral fins, a pair of pelvic fins, two dorsal fins, an anal fin, and a caudal fin. The members of the order Hexanchiformes have only a single dorsal fin. The anal fin is absent in the orders Squaliformes, Squatiniformes, and Pristiophoriformes.
Adults can grow up to but usually grow up to . This fish has 9 dorsal spines, 25 to 30 dorsal soft rays, 3 anal spines, and 19 to 22 anal soft rays.
Lateral and dorsal setae and prolonged anal setaceous spines. Body greenish with a dorsal pink band laterally bordered by yellow and two red lines. Pupa purplish brown. Pupa covered with white bloom.
The dorsal tegmental nucleus (DTN), also known as dorsal tegmental nucleus of Gudden (DTg), is a group of neurons located in the brain stem, which are involved in spatial navigation and orientation.
The pectoral fins of adults are broad and falcate (sickle-shaped). The dorsal fins have nearly vertical trailing margins, with the first originating over the pectoral fin rear tips. The second dorsal fin is about three-quarters as high as the first. The anal fin is much smaller than the second dorsal fin and originates well behind it.
This active protein is distributed in a ventral to dorsal gradient. Toll is a receptor tyrosine kinase for spätzle and transduces the graded spätzle signal through the cytoplasm to phosphorylate cactus. Once phosphorylated, cactus no longer binds to dorsal, leaving it free to enter the nucleus. The amount of released dorsal depends on the amount of spätzle protein present.
In addition, this tissue was able to induce the formation of another dorsal/ventral axis. Hans Spemann named this region the organizer and the induction of the dorsal axis the primary induction. The organizer is induced from a dorsal vegetal region called the Nieuwkoop center. There are many different developmental potentials throughout the blastula stage embryos.
The dorsal branch (ramus dorsalis; posterior branch) descends, along the dorsal surface of the radial side of the forearm to the wrist. It supplies the skin of the lower two-thirds of the dorso-lateral surface of the forearm, communicating with the superficial branch of the radial nerve and the dorsal antebrachial cutaneous branch of the radial nerve.
The long and narrow pectoral fins are falcate (sickle-shaped) with pointed tips. The large first dorsal fin is also falcate and originates over or slightly behind the rear of the pectoral fin bases. The second dorsal fin is moderately tall and positioned about opposite the anal fin. There is no midline ridge between the dorsal fins.
Xyrichtys novacula can reach in total length, though most do not exceed . Its body is elongate and very compressed laterally, the head is flattened, with a steep profile and sharp teeth. Its long dorsal fin extends along most of its back. It has 9 dorsal spines, 12 dorsal soft rays, 3 anal spines and 12 anal soft rays.
The flowers are green and white, swollen at the base and taper towards a bright reddish-brown tip. The dorsal sepal and petals are fused, forming a hood or "galea" over the column. The dorsal sepal is erect near the base but then curves forward and is long and wide. The petals are slightly longer than the dorsal sepal.
Segment 2 has the dorsal markings greatly restricted compared to Macromia flavocolorata. Segment 3 has paired dorsal spots apposed to the basal side of jugum, and a baso-lateral triangular spot on each side. Segments 4 to 6 have the paired dorsal spots. Segment 7 has a basal annule occupying about one-third the length of segment.
The eastern milk snake averages in total length (including tail), although specimens as long as in total length have been measured. It has smooth and shiny scales. The dorsal color pattern consists of brownish dorsal saddles, which are edged with black. The dorsal saddles are sometimes reddish or reddish brown in southern areas of its range.
Red milk snakes average in length, although specimens as long as have been measured. They have smooth and shiny scales. Their dorsal color pattern is narrow bands of white, pale gray, cream, or tan bordered by black, alternated with red dorsal saddles. Some individuals display even greater dorsal saddle color diversity, ranging from reddish brown to grayish brown.
Adult individuals can grow up to a maximum size of . Its fins have 17 dorsal spines, 14 to 16 dorsal rays, 2 anal spines, and 14 to 16 anal rays. This fish is gray on the front and white on the back. The top of its dorsal fin and the bottom of its anal fin is black.
The tongue can also divide itself in dorsal and ventral surface. The dorsal surface is a stratified squamous keratinized epithelium which is characterized by numerous mucosal projections called papillae. The lingual papillae covers the dorsal side of the tongue towards the front of the terminal groove . The ventral surface is stratified squamous non-keratinized epithelium which is smooth.
Adult males measure around and adult females in snout–vent length. They have a light and dark brown dorsal pattern that normally include a rectangular dark dorsal spot and which extends to the anus. Males have small, scattered, and inconspicuous asperities on the dorsal surfaces of head, body, and limbs. The tibia have light upper side.
The mouth is small and terminal and it has strong teeth. The first dorsal fin has three spines, one of which is longer and stronger than the other. It is erectile and kept in a dorsal furrow at rest. The second dorsal fin is similar in shape and size to the anal fin, which is symmetrically opposed to it.
Larva white; head yellowish; 1st somite with a dorsal green patch, the 2nd with a dorsal black patch; a blackish dorsal line; the anterior and posterior somites with tufts of long white hair projecting forward and backward; two tufts of yellow hair on terminal somite; the rest of hair white. Cocoon white. Pupa green. Food plant, Inga vera.
The Darwin's mudskipper has a body shape and dorsally pultruding eyes similar to other mudskippers. They have a maximum length of 4.6 cm. It has 5 – 7 dorsal spines, 10 – 12 dorsal rays, 1 anal spine, and 11 – 13 anal rays. Its greatest distinguishing characteristic from other mudskippers is its greatly reduced first dorsal fin in both sexes.
The southern torrent salamanders are small salamanders; mature adults measure from 1.5–2.4 inches snout to vent. On their dorsal sides, they are brown with darker spots. Their ventral sides are more yellow, with the same spots as the dorsal sides. The colors vary by shades; the dorsal sides range from dark olive to a dark brown.
Mouth is protractible, upwardly directed, with small teeth. Lower jaw has an upper expansion within mouth (high dentary bone). There are two separate dorsal fins, with all rays of first and 1-2 anterior rays of second dorsal fin being unsegmented. The anal fin is similar to the second dorsal fin, while the caudal fin is forked.
The eyelight fish is a small, dark fish, with a relatively stout body for an anomalopid. It has a blunt snout, large eyes, and prominent subocular light organs. It has a single dorsal fin and no adipose fins. It has 2-3 dorsal spines, 16-20 dorsal rays, 2 anal spines, and 13-15 anal soft rays.
There is a large lateral spot and a triangular apical mid-dorsal spot on segment 1. There is a fine mid-dorsal stripe, a large subdorsal apical spot and a large ventro- lateral spot on segment 2. Segments 3 to 6 have lateral stripes. Segment 7 has a large dorsal spot on the basal three-fourths.
The body is very soft, almost gelatinous. Unlike in other catsharks, the first dorsal fin originates well in front of the pelvic fins. The second dorsal fin is about as long and slightly lower than the first, and is positioned opposite the anal fin. The dorsal, pelvic, and anal fins have convex leading and nearly straight trailing margins.
The remaining body segments each bear leaf-like dorsal and ventral cirri, the dorsal ones being larger. The parapodia are uniramous or biramous, and chaetae are present on all but the first segment.
Adults can grow to a maximum size of . They have 13 dorsal spines, 13 to 15 dorsal soft rays, 2 anal spines, and 14 to 15 anal soft rays. This fish is blue.
The fingers bear broad discs and weakly crenulated lateral fringes. The toes bear narrow lateral fringes. Dorsal skin bears many small tubercles. Dorsal coloration is tan to reddish tan with dark brown markings.
The body is uniformly greenish with two whitish or yellow lines laterally on back. There are two distinct brown lines on inner side of latero-dorsal folds. No mid- dorsal line is present.
Grandidier's Madagascar swift has a distinctive light mid- dorsal band.
There is also a broad brown or grey dorsal stripe.
The dorsal column nuclei also include their tracts, or fasciculi.
It terminates in an anastomosis with the dorsal scapular artery.
The black dorsal line on the abdomen is sharply marked.
Breeding males have light orange edges on their dorsal fins.
Animals were placed on the surgery table in dorsal recumbence.
Males grow to a length of 112 cm, while females grow a bit larger at 120 cm. Its coloration is dark brownish bars, over the dorsal and lateral surfaces, and its dorsal and upper surfaced paired fins contain vermicular patterns. The ventral surface of the trunk is pale, with nasal barbels with branches, with up to 3 simple lobes, along with 3 to 4 branched lobes. The dorsal fin grows tall, with the first dorsal fin near the pelvic fins.
The large pectoral fins measure around one-fifth as long as the body, and have a falcate (sickle-like) shape tapering to a point. The first dorsal fin is of moderate size and somewhat falcate, with a pointed apex and a strongly concave rear margin; its origin lies over the pectoral fin free rear tips. The second dorsal fin is much smaller and is positioned about opposite the anal fin. A low dorsal ridge is present between the dorsal fins.
Once in the nucleus, Dorsal activates different genes depending upon its nuclear concentration. This process sets up a gradient between the ventral and dorsal side of the blastoderm embryo with the repression or induction of Dorsal target genes being differentially regulated. At the ventral end of the embryo, blastoderm nuclei exposed to high concentrations of dorsal protein induce the transcription of the transcription factors twist and snail while repressing zerknüllt and decapentaplegic. This results in the formation of the mesoderm.
It has no anal fin, but two dorsal fins approximately equal in size. The first dorsal fin originates about halfway from the tip of the snout to the tip of the caudal fin, the origin of the second dorsal fin is posterior to the tips of the pelvic fins. It has large pectoral fins, that's inner margins curve inward toward the base of the fins. There are dermal denticles on the dorsal surface of the body with very little overlapping.
The redmouth grouper is laterally compress and oval shaped with a relatively deep body which is around half of the standard length and a large head. The dorsal profile of the head is straight or slightly concave while the anterior dorsal profile between the eye and the origin of the dorsal fin is convex. It jaw extends past its eye. The dorsal fin has 9 spines and 17-18 soft rays while the anal fin has 3 spines and 8-9 soft rays.
Sphyraena chrysotaenia has a very elongated, torpedo-shaped body, typical of the barracudas, with two well- separated dorsal fins, the first dorsal fin has with five spiny rays, with the first ray being the longest, the rays then progressively decrease in size posteriorly. The second dorsal fin has its origin in front of the origin of the anal fin. The tail is markedly forked. The pectoral fin sits directly below the origin of the first dorsal fin with the pelvic fin below it.
Huehuecanauhtlus is known only from two individuals. The holotype IGM 6253 represented by fragmentary skull (partial left maxilla and dentary fragment) and postcranial skeleton including four cervical vertebrae, nine dorsal vertebrae, four dorsal neural spines, one dorsal diapophysis, five right dorsal ribs, seven left dorsal ribs, seven sacral neural spines, seven sacral diapophyses, one caudal diapophysis, three caudal vertebrae, two caudal neural spine, eight fragmentary ossified tendons, left and right partial ilium, and left and right partial pubis. The smaller paratype, IGM 6254, is represented by fragment of left dentary, two teeth, and one cervical prezygapophysis. Both specimens were collected at the Barranca Los Bonetes locality in Tuzantla, Michoacán.
Polynemus multifilis is a medium-sized species of threadfin which attains a maximum standard length of . It has a pointed snout and the dorsal pofile of the head is almost straight, There are two separate dorsal fins, the first dorsal fin contains 8 spines which are all of a similar thickness at their bases and the second dorsal fin has a single spine and 14-16 soft rats. The anal fin contains 3 spines and 11 to 13 soft rays and its base is shorter than that of the second dorsal fin. The pectoral fin has 14-16 unbranched soft rays and its tip reaches the origin of the anal fin.
The first dorsal consists of six spines, the second of a single spine and 25 to 30 soft rays, with the last two as a separate finlet. About 4% of rainbow runners have only five spines in the first dorsal fin, and are apparently born without them. The anal fin consists of one spine detached from the fin anteriorally, while the main fin has a single spine and 18 to 22 soft rays, with the last two detached to form a finlet like the dorsal fin. The dorsal and anal fins are quite low, and the dorsal fin is much longer than the anal.
The Atlantic threadfin is a medium-sized species of threadfin which grows to a maximum total length of , although most fish have a total length of around . It has a pointed snout and an almost straight dorsal profile on its head. There are two separate dorsal fins, the first dorsal fin contains 8 spines in which the bases of each spine is a similar thickness to the others, and the second dorsal fin has a single spine and 11 to 13 soft rays. The anal fin has 3 spines and 12 to 14 soft rays, The base of the anal fin is longer than that of the second dorsal fin.
The small-scale whiting is very similar in external appearance to many other members of the genus Sillago, which have a slightly compressed, elongate body tapering toward the terminal mouth. The dorsal fin is in two parts, the first made of feeble spines and the second of soft rays headed by a single feeble spine. The first dorsal fin has either 12 or 13 dorsal spines, a feature unique among Sillago which otherwise have 11 dorsal spines. The second dorsal fin has a single spine followed by 20 to 22 soft rays, while the anal fin has 2 spines and 22 or 24 soft rays.
The dorsal lip of the blastopore is a structure that forms during early embryonic development and is important for its role in organizing the germ layers. The dorsal lip is formed during early gastrulation as folding of tissue along the involuting marginal zone of the blastocoel forms an opening known as the blastopore. It is particularly important for its role in neural induction through the default model, where signaling from the dorsal lip protects a region of the epiblast from becoming epidermis, thus allowing it to develop to its default neural tissue. Figure 1: Mangold's dorsal lip transplant experiment in Xenopus demonstrated that a transplanted dorsal lip could induce the formation of a double axis in the new host embryo, solidifying the dorsal lip's sufficiency in neural induction (A).
Two-spined blackfish are similar in shape and appearance to river blackfish, though their spiny dorsal fin usually contain only two spines (hence their scientific name) in comparison to river blackfish which have 7 to 13 distinguishable spines in their spiny dorsal fin. (In reality, this is a rather academic point as two-spined blackfish have blurred the difference between the dorsal spines and the dorsal rays that make up their soft dorsal fin, and any distinctions between the two weakly calcified dorsal spines and the dorsal rays that follow it are hard to pick in a living specimen.) The two-spined blackfish is similar to the river blackfish in spawning and diet; however, they prefer rocks and the interstices ("gaps") between to timber as the main spawning and habitat sites. Two-spined blackfish are also much smaller, commonly 15 to 17 cm and a maximum size of 30 cm. The species feeds mostly on aquatic insect larvae and terrestrial invertebrates, and occasionally other fishes and crayfish.
They have 10 dorsal spines, 14-15 dorsal soft rays, 3 anal spines and 12 anal soft rays. The tip of each caudal-fin lobe has a black blotch bordered by a white band.
Giganthias are characterized by nine spines on the dorsal fin. The third dorsal spine and the pelvic spines have serrated tips. The lateral line is very highly arched and a supplementary maxillary is present.
Supratympanic fold is narrow and light coloured. Dorsal colour is light brown or olive. There is a dark, triangular interorbital marking, and an X-shaped dorsal marking with light bordering. Ventral surfaces are smooth.
Larva is bright green with a pale brown dorsal strip. A pale subdorsal stripe, with a red-brown edge above. Dorsal area speckled with brown. Spiracles are black with oblique brown stripes between them.
The dorsum is rugose. The dorsal ground color is yellowish tan. There are dark brown spots and a deep yellow or cream mid-dorsal stripe. The venter is whitish cream, possibly with black flecks.
S. sutor has a total of 13-14 dorsal spines, 10 dorsal soft rays, 7 anal spines, 9-10 anal soft rays and 23 vertebraes. Long flap of anterior nostril shortens as the fish ages.
Head and body reddish orange and white ventrally. First dorsal fin dark red in color with second dorsal fin red with black marking. Pectoral fin bright red. A symphyseal knob on the lower jaw absent.
Wingspan is about 30–32 mm. Dorsal surface of male is brown with purple blue or deep purple tinge. Female has more bluish tinge on paler metallic blue dorsal surface. Tornus with a large eyespot.
Dorsal skin is weakly pustular, that of venter is smooth to areolate. Dorsal coloration is variable (brown, gray, or yellow-green) and includes dark spots. Ventral skin is translucent. The hind limbs have dark crossbars.
A Field Guide to Coastal Fishes From Maine to Texas. 2011. Johns Hopkins University Press. pg 86. Both the dorsal and caudal fins are black, and the dorsal fin is fully connected at its base.
The first dorsal fin is large, high, stiff, and angular or somewhat rounded. The second dorsal and anal fins are minute. The caudal peduncle has a couple of less distinct keels. The teeth are gigantic.
Adults have a maximum size of . It has 12 dorsal spines, 19 to 20 dorsal soft rays, two anal spines, and 15 to 16 anal soft rays. They are brown with two vertical white stripes.
Dorsal colouration is cryptic, brown. A pale oblique lateral stripe is present. Dorsal skin is smooth or with irregularly scattered granules or tubercles, most distinct and prevalent posteriorly. In adult males, third finger is swollen.
This species of goby can reach a length of TL. The caudal fin is rounded. It has 5 dorsal spines, between 18 and 19 dorsal soft rays, 1 anal spine, and 14 anal soft rays.
Interphalangeal ligaments and phalanges. Right hand. Deep dissection. Posterior (dorsal) view.
The dorsal bar is white and oblique. The hindwings are grey.
Dorsal fin of the Phaeton dragonet with the typical black blotch.
The smooth dorsal scales are arranged in 17 rows at midbody.
There are tall neural spines on the cervical and dorsal vertebrae.
The lunate receives its blood supply from dorsal and palmar branches.
They are green, with a darker and very indistinct dorsal line.
There are more than 300 dorsal scales in the vertebral row.
S. torrei has "very small minute granule-like" dorsal scales.Barbour (1914).
The dorsal fin has a large spine with retrorse serrations behind.
Dorsal digital nerves of ulnar nerve are branches on the dorsum of the hand. The dorsal branch of the ulnar nerve divides into two dorsal digital branches; one supplies the ulnar side of the little finger; the other, the adjacent sides of the little and ring fingers. It also sends a twig to join that given by the superficial branch of the radial nerve for the adjoining sides of the middle and ring fingers, and assists in supplying them. They run with the dorsal digital arteries.
This suggests a requirement for 2d to be present in order to induce the proper formation of the head along a dorsal-ventral axis. When micromeres 2d1 and 2d2, the immediate descendants of 2d, are both deleted, the resulting larvae retain dorsal-ventral organization within the head. It was therefore concluded that in C. teleta micromere 2d has organizing activity in patterning the dorsal- ventral body axis. Furthermore, perturbation studies have shown that the dorsal-ventral axis is primarily patterned via the Activin/Nodal pathway.
There are two dorsal fins; the first is long and spiny, and is followed immediately by the second, which contains 1 tiny spine and 11–14 soft rays. The anal fin originates opposite the second dorsal fin and consists of 2 free spines followed by 1 spine and 10–12 rays. The dorsal and anal fins are followed by 6–7 finlets. There are two lateral lines, with the upper running to the rear of the first dorsal fin and the lower running to the caudal peduncle.
Before the structural formation of the dorsal lip occurs another signaling center known as the Nieuwkoop center, located in the vegetal region of the developing blastocoel, is responsible for organizing the polarity patterns needed to form the dorsal lip. The Nieuwkoop center was discovered to be responsible for dorso-ventral polarity establishment through Wnt/GSK/beta-catenin. This dorsalizing signal allows for the Spemann organizer to become established in the dorsal marginal cells where the future site of the dorsal lip and blastopore will form.
When the dorsal roots are cut in a cat performing a step cycle, peripheral excitation is lost, and the dorsal spinocerebellar tract has no activity; the ventral spinocerebellar tract continues to show activity. This suggests that the dorsal spinocerebellar tract carries sensory information to the spinocerebellum through the inferior cerebellar peduncle during movement (since the inferior peduncle is known to contain fibres from the dorsal tract), and that the ventral spinocerebellar tract carries internally generated motor information about the movement through the superior cerebellar peduncle.
The paradise threadfin is a medium-sized species of threadfin which attains a maximum length of , although the type of measurement used was not given, a more normal length is a total length of . It has a pointed snout and the head's dorsal profile is almost horizontal. There are two separate dorsal fins, the first dorsal fin has 8 spines with each one having a base of a similar size to the others. The second dorsal fin contains a single spine and 14 or 15 soft rays.
Polydactylus sexfilis is a medium-sized species, which attains a maximum total length of and a weight of . It has a ponted snout and the head has an almost horizontal profile. There are two separated dorsal fins, the first dorsal fin has 8 spinesand the second dorsal fin contains a single spine and 12 or 13 soft rays. The anal fin has 3 spines and 11 or 12 soft rays, the base of the anal fin is roughly equal in length to the second dorsal-fin base.
The first dorsal fin is triangular with a rounded apex, originating in front of the pelvic fin insertions. The second dorsal fin is only one-half to two- thirds as large as the first; the distance between the dorsal fins is less than the length of the first dorsal fin base. The stout tail comprises about one-third of the total length, terminating in a caudal fin shaped like an equilateral triangle with slightly convex margins. The skin is soft and completely devoid of dermal denticles (scales).
The king threadfin is a large threadfin which can attain a maximum total length of and a maximum published weight of , although the more common total length is . It has a pointed snout and the dorsal profile of the head is almost flat in young fish and concave in adults. There are two separate dorsal fins, the first dorsal fin has 8 spines and the second spine is thicker than others. The second dorsal fin has a single spine and 11 to 13 soft rays.
The swimming keel of the club extends considerably near to the carpus. The dorsal and ventral protective membranes are not joined at the base of the club, but fused to the tentacular stalk. Dorsal and ventral membranes differ in length and extend near to the carpus along the stalk. The dorsal membrane forms a shallow cleft at the junction with the stalk.
Flattened and spheroid in shape, the torso has a somewhat boxy cross-section. There are sixteen dorsal (back) vertebrae in Tatenectes, which, when articulated, form a considerably flatter arch than seen in related taxa. The dorsal neural spines are inclined anteriorly. The dorsal ribs articulate with the vertebrae horizontally and are deflected backwards, contributing to the flatness of the body.
In the plains zebra, the dorsal stripe is narrow and edged by white, while in Grevy's zebra, it is quite bold. The dorsal stripes of the onager and kiang are dark brown and especially vivid. The dorsal stripe reflects the original coat color of the horse. Those on bay duns may be black or reddish, while those on red duns are distinctly red.
Dark bars run from the eyes down. There are also dark bars on the dorsal fins, caudal fins, and anal fins. The large eyes and thick lips give the decorated warbonnet an almost cartoon like look. They have 61 or 62 total dorsal spines, 0 dorsal soft rays, 1 anal spine, and anywhere from 44 to 51 anal soft rays.
Pterycombus is a genus of pomfret distinguished by greatly elongated dorsal and anal fins. Along with the genus Pteraclis, these fishes are commonly referred to as fanfishes. Pterycombus can be distinguished from Pteraclis by examining the dorsal and anal fin rays, which should be relatively uniform in thickness to neighboring rays and by a lack of scales anterior to the dorsal fin.
It has two dorsal fins that help differentiate this shark from other Oxynotus species. Its first dorsal fin is inclined forward, is very long and thick, and triangular in shape. The second dorsal fin is similar to the first, although it is not as long. However, as some other Oxynotus species, the Caribbean roughshark does not have an anal fin.
The fairly long and pointed pectoral fins are slightly sickle-shaped (falcate) and originate between the fourth and fifth gill slits. The first dorsal fin is medium-sized and triangular with a pointed apex, and originates over the rear of the pectoral fin bases. The second dorsal fin is small and positioned opposite the anal fin. No ridge exists between the dorsal fins.
The small pectoral fins are falcate (sickle-shaped) with relatively pointed tips. The first dorsal fin is broad, forming nearly an equilateral triangle in adults, with a blunt apex; it originates over the pectoral fin rear tips. The second dorsal fin is small and originates over the midpoint of the anal fin base. No ridge exists between the dorsal fins.
The striatum is one mass of grey matter that has two different parts, a ventral and a dorsal part. The dorsal striatum contains the caudate nucleus and the putamen, and the ventral striatum contains the nucleus accumbens and the olfactory tubercle. The internal capsule is seen as dividing the two parts of the dorsal striatum. Sensorimotor input is mostly to the putamen.
Its dorsal fin lacks the prominent black spot. This species has a dorsal fin that lacks the prominent black spot. The dorsal surface of the fish is typically an olive or straw color that has a silver overlay, and there is a dusky strip along its back. The ventral surface is a silvery white, and has a silver-black strip along its side.
Euphilotes enoptes smithi is a small butterfly with a wingspan no greater than 2.5 centimeters. Males manifest dorsal wing color of a bright lustrous blue, while females exhibit brown dorsal coloration. Both sexes have with orange-red band markings on the hind dorsal wings. Ventral wing coloration for both males and females is a whitish gray, punctuated with black speckling.
Additionally, there is a distinct ridge on the posterior surface of each dorsal eminence. Dorsal eminences are small projections on the surfaces of paramedian scutes that line the back of the animal on either side of the vertebral column. In Sierritasuchus, the dorsal eminence touches the posterior margin of the paramedian scute. Each paramedian scute is covered in a random pattern of pits.
Females may reach a length of and males . They are a shade of brown on the dorsal surface. This colour can be light or dark; they can also be a red-brown on the dorsal surface. There are distinct darker stripes running down the frogs back (giving this species its name), there is normally a paler mid-dorsal stripe running down the back.
T. chatareus have five or six dorsal spines, the fourth of which is the longest, and twelve or thirteen dorsal soft rays. The dorsal spines are generally shorter in specimens collected from freshwater than those from brackish water. T. chatareus also have three anal spines and fifteen to seventeen anal soft rays. T. chatareus have 33 or 34 lateral line scales.
The dorsal trigeminal tract, dorsal trigeminothalamic tract, or posterior trigeminothalamic tract, is composed of second-order neuronal axons. These fibers carry sensory information about discriminative touch and conscious proprioception in the oral cavity from the principal (chief sensory) nucleus of the trigeminal nerve to the ventral posteromedial (VPM) nucleus of the thalamus. The dorsal trigeminothalamic tract is also called the posterior trigeminal lemniscus.
There is a strong dark horizontal stripe along the midline, and sometimes a thinner dark band about half-way between the midline band and the base of the dorsal fin. There are often dark blotches along the base of the dorsal fin. Faint dark vertical bars can sometimes be seen on the flanks. The tip of the dorsal fin is edged in red.
The five pairs of gill slits are tiny and of uniform width. The two dorsal fins lack spines. The first dorsal originates over the pectoral fin bases; the second dorsal is slightly larger than the first but is about equal in base length, and originates over the middle of the pelvic fin bases. The pectoral fins are short and somewhat paddle-like.
The pelvic fins are rather long and narrow; males have slender claspers that have a fleshy flap at the tip. The first dorsal fin base is located roughly over the latter half of the pelvic fin bases. The second dorsal fin is smaller and more angled than the first. The dorsal fins have more rounded apexes in females than males.
The short and thick tail bears skin folds along either side and two dorsal fins on top. The first dorsal fin is slightly larger than the second. The well-developed caudal fin is triangular with blunt corners, and is approximately as long as the space between it and first dorsal fin. The skin is smooth and soft, entirely lacking dermal denticles.
Belemnacanthus is from the Givetian of Eifel, Germany. It has been previously described as being an elasmobranch, an agnathan, and an antiarch. The genus is known only from the holotype: a 37 cm long portion of a median dorsal plate, suggesting a very large animal. The median dorsal plate has a long crest running down the median of the dorsal surface.
The blackfin grenadier has two dorsal spines and between 25 and 39 dorsal rays. It has a large head, large eyes, and a pointed snout. The body tapers into a posterior point starting behind the first dorsal fin. The scales of the blackfin grenadier are covered in fine, conical spinules except on the posterior and ventral parts of the trunk and tail.
Within these habitats, two holotypes and paratypes, Antennarius randalli and Antennarius moai, were discovered. These are considered frog-fish because of their characteristics: "12 dorsal rays, last two or three branched; bony part of first dorsal spine slightly shorter than second dorsal spine; body without bold zebra-like markings; caudal peduncle short, but distinct; last pelvic ray divided; pectoral rays 11 or 12".
They also have two dorsal fins spaced widely apart, which help identify the species in the open ocean. In front of each pectoral fin is one single gill opening. Between the two dorsal fins is a spine, and the second dorsal fin is significantly smaller than the more anterior one. The caudal fin is divided into two lobes, the top one being larger.
Additionally, the dorsal medial PFC-medial dorsal thalamus connection has been linked with maintenance of rank in mice. Another area that has been associated is the dorsal raphe nucleus, the primary serotonergic nuclei (a neurotransmitter involved with many behaviors including reward and learning). In manipulations studies of this region, there were changes in fighting and affiliative behavior in primates and crustaceans.
Additional subdivisions, including V3A and V3B have also been reported in humans. These subdivisions are located near dorsal V3, but do not adjoin V2. Dorsal V3 is normally considered to be part of the dorsal stream, receiving inputs from V2 and from the primary visual area and projecting to the posterior parietal cortex. It may be anatomically located in Brodmann area 19.
These two terms, used in anatomy and embryology, describe something at the back (dorsal) or front/belly (ventral) of an organism. The dorsal () surface of an organism refers to the back, or upper side, of an organism. If talking about the skull, the dorsal side is the top. The ventral () surface refers to the front, or lower side, of an organism.
Retrieved December 05, 2017, from The dorsal funiculus is located between the dorsal horn and the medial line in the spinal cord. There are three types of neurons in the pathway: first-, second-, and third-order neurons. The first-order neuron is the afferent neuron. It enters the spinal cord through the dorsal root ganglia and branches in the spinal cord.
The dorsal fin is continuous and there is almost no difference in form between the spiny and rayed parts of the dorsal fin. The spiny part is about a third longer than the rayed portion. The spines become longer towards the trail and the soft rays are noticeably longer than the spines. The soft-rayed part of the dorsal fin is rounded.
The fins are strongly falcate (sickle-shaped), particularly the dorsal fins, pelvic fins, and lower caudal fin lobe. The pectoral fins are narrow and pointed. The first dorsal fin is positioned about halfway between the pectoral and pelvic fins. The second dorsal fin is about two-thirds as tall as the first and is positioned slightly ahead of the anal fin.
Campbellodus has very short spinal plates, and is unusual in having a high dorsal spine formed by three median dorsal plates. The tooth plates are very robust and the upper plate has a high anterior spine.
The male sucker has a narrow red lateral band on it and a long dorsal and ventral fin. The female sucker has a narrow brown lateral band on it, and a shorter dorsal and ventral fin.
Dorsal-Ventral Patterning and Neural Induction in Xenopus Embryos. Annu Rev Cell Dev Biol. 20: 285-308. Transplant of the Nieuwkoop Center causes formation of an embryonic axis with an endodermal fate which contains dorsal mesoderm.
Males measure and females in snout–vent length. The head is broad. The dorsal surfaces are white and have irregular darker spots that rarely form a pattern. Males have fine dorsal spines whereas females are smooth.
The dorsal fin of the males can become long and flowing. Both sexes have the eye-catching blood-red spot in the pectoral area. Both also have the black and white patch on the dorsal fin.
The two generations differ in pattern. The colour of the caterpillar varies from yellowish to greenish to bluish. It has obvious side stripes. The dorsal line and the dorsal side line are darker than the base colour.
Both the dorsal and ventral machine guns could move up and downwards by 65°. The dorsal position could move the 13 mm (.51 in) MG 131 machine gun 40° laterally, but the ventral Bola-mount 7.92 mm (.
Nevertheless, Kaikaia differs from > Platycentrus in its narrow, straight shape of the second valvulae, which > bear several prominently raised dorsal teeth and an acute projection along > the dorsal margin that resemble those of some members of Nessorhinini.
The fingers are long with globular tips and lack webbing. The toes are long, thin, and fringed. Dorsal surfaces and the limbs are light brown with golden tints. Skin on the flanks and dorsal surface is granular.
The dorsal view is pale yellow orange with dark borders and markings. The hindwing has white- centered submarginal spots on both sides, dorsal and ventral. The hindwing is pale and has a white crescent at the margin.
It reaches a maximum length of . It has 7 dorsal spines and 12-13 dorsal soft rays. It has a single anal spine and 12-13 anal soft rays. Its fins are dusky to black in color.
Usually, it is a murky yellow on the dorsal side with a pale underside. There are two long, lateral stripes on the fish along the center of the body, and on the dorsal side of the fish.
The spine is short, sometimes with dorsal calluses. The spine is short, apodes, sometimes with dorsal calluses before the stigmatic cavity, small wings or auricles, and terminal anther somewhat inserted under the terminal margins of the spine.
These spines are very noticeable in males, and resemble a dorsal fin.
The dorsal hindwing is dirty gray brown, but lighter near the base.
All species have venom glands in their dorsal, anal, and pelvic spines.
The dorsal scales are weekly keeled, and the anal plate is entire.
Ariosoma Sokotranum's dorsal fin originates slightly anterior to base of the pectorals.
Polydactylus sextarius is a small- to medium-sized threadfin which attains a maximum total length of but is more common. It has a pointed snout with the dorsal profile of the head being almost straight. There are two separate dorsal fins, the first with 8 similar spines and the second dorsal fin has a single spine and 12 or 13 soft rays. The anal fin has 3 spines and 11 to 13 soft rays, with the anal fin base being roughly the same length as the base of the second dorsal fin.
Dorsal osteoderms, which are found on the backs of aetosaurs, are often ornamented with radial grooves. Dorsal paramedians, those found along the midline of the animal, are often wide and quadrangular with a small boss called a dorsal eminence on the dorsal surface of each plate. In aetosaurs, paramedian plates often have raised or depressed anterior edges where the plates articulate with the ones in front of them. If the anterior edge is raised, the area is called an anterior bar, while if it is depressed, the area is called an anterior lamina.
The dorsal part below the fold is only slightly sprinkled with dark scales. There is an irregular series of darker brown spots intervened by pure white dashes on the costal edge from the basal third to the apex. Around the apex and along the base of the dorsal cilia, a thin blackish-brown line is found. Furthermore, there is large, oblique, dark brown spot shaped like a parallelogram on the middle of the dorsal edge, reaching across the light dorsal area to the more densely dusted costal part.
T. oligolepis has longer dorsal spines overall than those observed in the Kimberley region population. The third dorsal spine of T. oligolepis is distinctive and extends higher than the rest of the soft dorsal fin, whereas the fourth and fifth spines of T. kimberleyensis are longest. However, the spines of T. kimberleyensis do not extend beyond the height of the soft portion of the dorsal fin. T. oligolepis also has around 25 scales on its lateral line, compared to 30–31 typically (and up to 33) for T. kimberleyensis.
The Seychelles gulper shark (Centrophorus seychellorum) is a species of fish in the family Centrophoridae found in Alphonse island in Seychelles. This species is distinguished by having large tip of snout to first dorsal distance of 34% TL; first dorsal fin high (7% TL); second dorsal fin base long (9.8% TL); long snout (12.2% TL); uniformly grey with tip and the trailing edge of dorsal fins blackish.Baranes, A. (2003): Sharks from the Amirantes Islands, Seychelles, with a description of two new species of squaloids from the deep sea. Israel Journal of Zoology, 49: 33-65.
Despite cross-talk between the dorsal and ventral cortices, fMRI results suggest that those with ventral cortex damage are less sensitive to object 3D structure than those with dorsal cortex damage. Unlike the ventral cortex, the dorsal cortex can compute object representations. Thus, those with object recognition impairments are more likely to have acquired damage to the dorsal cortex. Those suffering from Alzheimer’s disease show a reduction in stereognosis, the ability to perceive and recognize the form of an object in the absence of visual and auditory information.
The first bar is on the nape, the third bar runs through a dark brown or black blotch on the body at base of rearmost 3 spines of the dorsal fin while the final bar is on the caudal peduncle. These dark bars reach the base of dorsal fin. The margin of the dorsal fin is yellow or orange with a line of dusky yellow or orange spots along middle of spiny part of that dorsal fin and another along base of the fin. These rows have one spot on each membrane.
The mouth is nearly straight, with three lobes on the lower lip and furrows at the corners. There are 28-33 tooth rows in the upper jaw and 22-32 tooth rows in the lower jaw; each tooth has a large central cusp flanked by two smaller ones. There are five distinctive ridges running along the body in adults, one along the dorsal midline and two on the sides. The dorsal midline ridge merges into the first dorsal fin, placed about halfway along the body and twice the size of the second dorsal fin.
The dorsal radiocarpal ligament (posterior ligament) is less thick and strong than its volar counterpart, and has a proximal attachment to the posterior border of the distal radius. Its fibers run medially and inferiorly to form a distal attachment at the dorsal surfaces of the scaphoid (navicular bone of the hand), lunate, and triquetral. The fibres of the dorsal radiocarpal ligament blend with those of the dorsal intercarpal ligament. It is in relation, behind, with the Extensor tendons of the fingers; in front, it is blended with the articular disk.
Umbonia spinosa can be distinguished from other members of its genus by the appearance of its dorsal horn. Its dorsal horn pronotum is located between or just behind its humerais and they possess a short metopidium. Dorsal horn pronotum itself is straight and the base of the plate is yellow, testaceous or pale green, with red or yellow vittae each side, though sometimes U. spinosa can be characterized by black vittae. The dorsal horn gradually tapers to a point from base to summit, similar to a thorn in appearance.
The first dorsal fin is relatively small, measuring less than a tenth as high as the shark is long, and originates behind the free rear tips of the pectoral fins. It has a rounded apex, an "S"-shaped rear margin, and a free rear tip about half as long as the fin is tall. The second dorsal fin is tiny, smaller than the anal fin, with a drawn-out free rear tip up to three times as long as the fin is tall. A narrow dorsal ridge runs between the dorsal fins.
The texture throughout is smooth, lacking bumps or pustules. The dorsal median rib is absent. A thin film of chitin covers the entire dorsal surface. The cuttlebone lacks a pronounced spine; if present, it is small and chitinous.
A dorsal black stripe bordered by reddish-white spots between fourth and fifth somites. There is a pair of dorsal red tubercles on anal somite. Spiracles and forelegs are red. Four larval instars are completed before pupal stage.
Localized granuloma annulare is a skin condition of unknown cause, tending to affect children and young to middle-aged adults, usually appearing on the lateral or dorsal surfaces of the fingers or hands, elbows, dorsal feet, and ankles.
Healthy whip coral gobies have seven dorsal spines, seven dorsal soft rays, one anal spine and seven anal soft rays. They also have cup-like pelvic fins and gills that open below the base of the pectoral fins.
Smallscale archerfish have a pointed snout and large eyes. The back is flat and the belly is curved. There is only one dorsal fin, with four to five dorsal spines. The fourth spine is longer than the third.
Forewings brown with slightly darker shading and fine, paler fasciae. Eggs pale green spherical with three broad, rich brown bands. Caterpillar reddish with a fine dorsal red line. This dorsal line is edged by broad, mottled, whitish bands.
The lowfin gulper shark has no anal fin, two dorsal fins (with spines with the first dorsal fin being much longer than the rear), a long, broad snout, and angular pectoral fins. Its maximum length is 1.6 m.
X. bicolor exhibits the following characters: Black dorsally. White ventrally including the upper lip and the first two rows of dorsal scales on each side. Total length ; tail . Dorsal scales smooth, without apical pits, arranged in 17 rows.
Racloirs are most associated with the Neanderthal Mousterian industry. These racloirs are retouched along the ridge between the striking platform and the dorsal face. They have shaped edges and are modified by abrupt flaking from the dorsal face.
The dorsal side is covered with spiny warts. The parotoids are prominent, kidney-shaped, or elliptical and elongated. The dorsal side is yellowish or brownish and the spines and ridges are black. The underside is unmarked or spotted.
The veins crossing the band are yellowish. Larva black above and brown below. There are two dorsal white bands, a sub-dorsal black spot on each somite. A series of lateral black specks present with sparse black hairs.
The external auditory meatus develops from the dorsal portion of the first pharyngeal cleft. Six auricular hillocks, which are mesenchymal proliferations at the dorsal aspects of the first and second pharyngeal arches, form the auricle of the ear.
Males have dark vertical bars above and below their stripes, yellow-hued fins, and their dorsal and anal fins are longer and more pointed. Females have no bars, white fins and shorter, more rounded dorsal and anal fins.
The capitulum of these ticks can not be seen in dorsal view because it lies within a groove or depression called a camerostome. The dorsal wall of the camerostome extends over the capitulum and is called the hood.
As is common in somphospondylans, the pneumatic fossae on the cervical vertebrae are shallow; this was also the case in the dorsal vertebrae. The cervical and dorsal vertebrae are opisthocoelous; the caudal vertebrae were procoelous (a characteristic common in Lithostrotia). The seventh and eighth tail vertebrae are fused together; this probably represents a pathology. As in other titanosauriforms, the dorsal ribs are compressed and blade-like.
Body axis straight (Sublette et al. 1990). Mouth position: Supraterminal, oblique; mouth small; obliquely sloped, protruding lower jaw (Sublette et al. 1990). External morphology: Distance from origin of dorsal fin to end of hypural plate more than distance from origin of dorsal fin to preopercle (Hubbs et al. 1991); dorsal and caudal fins rounded; pectorals, pelvic, anal fins rounded at apex (Sublette et al. 1990).
The summer dorsal pelage and ventral pelage are dark rufous or blackish brown. The ears are rounded, measure in length, and feature dark gray spots in the back. In a few individuals, the spots form a dorsal collar on the nape and extend onto the face, but the forehead remains brown. The dorsal side of the ears are light chestnut in color, and have a white rim.
The longfin yellowtail has a less elongated, more flattened body than most jack species. Their dorsal fin and anal fins are elongated, and their outer edges have a definite sickle shape. The first rays of the almaco dorsal fin's longest parts are nearly twice as long as the dorsal spines, also different from other jacks. They reach a typical length of , sometimes reaching and .
At the dorsal end of the neural tube, BMPs are responsible for neuronal patterning. BMP is initially secreted from the overlying ectoderm. A secondary signaling center is then established in the roof plate, the dorsal most structure of the neural tube. BMP from the dorsal end of the neural tube seems to act in the same concentration-dependent manner as Shh in the ventral end.
The pectoral fins are small, broad, and rounded; the pelvic fins are similar and almost as large. The two dorsal fins have straight trailing margins and are spaced well apart. The first dorsal fin is as large or larger than the pelvic fins, originating behind the middle of the pelvic fin bases. The second dorsal fin is slightly smaller than the first but has a longer base.
The first dorsal fin originates over the free rear tips of the pectoral fins; it is large and falcate (sickle-shaped) with a pointed apex. The second dorsal fin is positioned opposite the anal fin and is relatively large and high. There is no ridge between the dorsal fins. A crescent-shaped notch is present on the caudal peduncle just before the upper caudal fin origin.
The brindled madtom is laterally compressed along the caudal peduncle and has a dorsally compressed anterior from the pelvic fins to the jaw. The brindled madtom is light brown, with dark dorsal splotches along the tip and two conspicuous saddle marks just behind the dorsal fin. The dorsal fin has a dark, spotted blotch on the tip and is located between the pectoral and pelvic fins.
Analysis of the tissue distribution of the IL-31 receptor complex found that IL-31RA is abundant in dorsal root ganglia of different human tissues. Dorsal root ganglia is where the cell bodies of primary sensory neurons reside. Dorsal root ganglia are also believed to be where the "itch" sensation originates. These findings support the elevated levels of IL-31 in skin biopsies of pruritic skin diseases.
Ventrally, it is pale greenish. The dorsal scales, which are large, keeled, and overlapping, are arranged in only 12-15 rows at midbody. The dorsal scales in the 10 middle rows are always the largest, and additional rows are made up of smaller scales. An even number of dorsal scale rows is frequently found in this species, even though it is uncommon in snakes in general.
Adult Ypthima singala show sexual dimorphism. In male specimens, the dorsal surface of both wings is brownish and one large eye-spot and a series of smaller eyespots are found on the ventral surface of the forewing. This large eyespot can be seen very faintly on the dorsal surface. In female specimens, a prominent eye-spot is found on the dorsal surface of the forewing.
The two dorsal fins are positioned about between the pectoral and pelvic fins. Each dorsal fin bears a slightly grooved spine in front; the second dorsal spine is longer than the first. The anal fin is absent, and the caudal peduncle lacks keels or notches. The upper lobe of the caudal fin is larger than the lower and has a notch in the trailing margin.
The caudal fin is forked with short, although distinct, peduncle flanges. The anal fin is longer than the dorsal fin and begins well posterior to the dorsal fin base. Pectoral fins are long and slender. The fish has a large, clearly visible swim bladder located below the spine just forward of the longitudinal mid-point, and an adipose fin on the dorsal surface above the anal fin.
The dorsal root of spinal nerve (or posterior root of spinal nerve) is one of two "roots" which emerge from the spinal cord. It emerges directly from the spinal cord, and travels to the dorsal root ganglion. Nerve fibres with the ventral root then combine to form a spinal nerve. The dorsal root transmits sensory information, forming the afferent sensory root of a spinal nerve.
The root emerges from the posterior part of the spinal cord and travels to the dorsal root ganglion. The dorsal root ganglia contain the pseudo-unipolar cell bodies of the nerve fibres which travel from the ganglia through the root into the spinal cord. The lateral division of the dorsal root contains lightly myelinated and unmyelinated fibres of small diameter. These carry pain and temperature sensation.
Banded archerfish have four dorsal spines, 11 to 13 dorsal soft rays, three anal spines (of which the third is longest) and 15 to 17 anal soft rays. The first spine is always the shortest; the rays become shorter toward the posterior end. There are about 23 scales between the first dorsal spine and the posterior nostrils. Certain areas of the body are tinged green.
Anatosuchus has a proatlas vertebra, eight cervical vertebrae and probably 16 dorsal vertebrae, though only 15 are preserved. There are also two sacral vertebrae. The dorsal vertebrae are amphicoelous, while the cervical centra lack hypapophyses. The proatlas is an inverted V-shaped piece of bone with a dorsal keel and is quite large relative to the atlas, which is made up of two separate neural arches.
River blackfish are elongated with a rounded body, distinct snout and large mouth, and small to moderate sized eyes. The caudal fin, soft dorsal fin and anal fin are rounded. The spiny dorsal fin is low, weak and blends into the soft dorsal fin. Colour varies but is usually either yellow or green with dark green mottling, or a very dark purple/black colour.
The mouth is wide, with relatively short furrows at the corners, and contains small multi-cusped teeth. There are five pairs of gill slits. The first and second dorsal fins are similar in size and shape, and are placed mostly behind the pelvic and anal fins respectively. The space between the dorsal fins is much longer than the length of either dorsal fin base.
Segment 2 has a pair of mid-dorsal diamond-shaped spots narrowly separated in the middle. The ventral border of this segment is broadly yellow at base. Segment 3 has a pair of mid-dorsal triangular spots at the basal side of jugal suture and a large triangular spot on each side at base. Segments 4 to 6 have the paired mid-dorsal spots.
Some individuals have 5 or 6 incomplete vertical bars extending from around the dorsal fin to the level of the pectoral fins. The fins are generally yellow in colour, with varied dusting and blotching. The spinous dorsal fin has irregular spotting and a faint duskiness distally, but does not exhibit a distinct patch of dark pigmentation. The soft dorsal fin is dusky at the base.
The Indian threadfin is a large species with an elongated head and body. Its eye is roughly the same size as the length of its snout. The joint of the jaws is to the rear of the eyelid. It has two separated dorsal fins, the first dorsal fin contains 8 spines while the second dorsal fin has a single spine and 12 or 13 soft rays.
A. thielli has reddish orange body, with a single white head bar that may be connected at the top with a bonnet and two saddles on the dorsal fin and tail base. They have 10-11 dorsal spines, 2 anal spines, 16 dorsal soft rays and 14 anal soft rays. They reach a maximum length of . The species was described from two aquarium dealer specimens.
The dorsal fin is continuous, the spiny part contains 11-13 spines and is arched with the fifth spine being the longest, the spines behind that decreasing in size. There are 8-9 soft rays in the dorsal fin and the longest of these are shorter than longest dorsal spines. The anal fin has 3 spines and 8-9 rays. The caudal fin is emarginate.
Lutjanus monostigma can reach a maximum length of in males, with a common length of . The dorsal profile of head is gently to moderately sloped and adults are silvery white with yellow fins. These dark eyed fishes have 10 dorsal spines, 3 anal spines and very large canine teeth. They show a small black side spot (hence the common name) just below the dorsal fin.
It has two dorsal fins; the anterior being quite short while the posterior dorsal fin stretches more than half the body length. The caudal (tail) fin is rounded and not overly wide. The ventral aspect of the body is described as silver in color while the dorsal section is a pale pink-brownish color. The eyes are large and a barbel is present on the chin.
The first dorsal fin is tall and slightly falcate (sickle-shaped), originating behind the pectoral fin bases; its free rear tip lies over the origin of the pelvic fins. The second dorsal fin is smaller than the first, but still rather large, with a concave, trailing margin. The pelvic fins have nearly straight trailing margins. The anal fin is taller and longer than the second dorsal fin.
Rome: United Nations Development Program: Food and Agriculture Organization of the United Nations. Though all white marlin have the same coloring pattern, they are sexually dimorphic, with the females usually larger. One of the most noticeable features of white marlin is the dorsal fin, which extends along the majority of the dorsal portion of its body. The dorsal fin consists of typically 28 to 46 rays.
The pectoral fin allows them to turn left or right, they also support the stability of the fish (Aquaveiws, 2009). The dorsal fin helps aid the fish to make sharp turns and helps the fish in rolling (Aquaveiws, 2009). The dorsal fin on the garfish is located well back on the fish (Montgomery & Saunders, 1984). Unlike most fishes, the dorsal fin of the garfish lacks spines.
Dorsal spines (total): 2; Dorsal soft rays (total): 7; Anal spines: 3; Anal soft rays: 5. Preserved color dark brown dorsally, whitish to yellowish on sides and below; scales margined with minute dark spots; opercle with silvery black spot. 12 scales between nape and dorsal. Mouth strongly oblique with anterior end as high as upper margin of pupil; maxillary extends posteriorly below anterior margin of eye.
It has a large, blue-rimmed, black eyespot where the dorsal fin spines meet the dorsal fin soft rays, and a smaller, similarly coloured eyespot on the caudal peduncle. Some juveniles off the coast of southeastern Brazil have a vivid yellow and orange band on the back and dorsal fin.Unusual coloration pattern in juveniles of Stegastes fuscus (Actinopterygii: Pomacentridae) Zootaxa. Retrieved 2011-12-29.
The first dorsal fin is about a third larger than the second and originates over the pelvic fin origins. The second dorsal fin is located midway between the first dorsal and the caudal fin. The broad and triangular pectoral fins have a deep indentation where their leading margins meet the head. The pelvic fins are much smaller than the pectoral fins, and the anal fin is absent.
Both parties are in fact right, as the RUL's consists of two ligaments each made of another two components: the superficial and the deep ligaments. During supination, the superficial palmar and the deep dorsal ligaments are tightened, preventing palmar translation of the ulna. In pronation this is reversed: the superficial dorsal and the deep palmar ligaments are tightened and prevent dorsal translation of the ulna.
The anal fin is about the same size as the dorsal fin. The white crappie has six dorsal fin spines, whereas the black crappie has seven or eight dorsal fin spines. White crappies are also slightly more elongated than black crappies. The white crappie is a deep-bodied fish with a flattened body, or a depth that is one- third of the length of the fish.
Black crappies are most accurately identified by the seven or eight spines on its dorsal fin (white crappies have five or six dorsal spines). Crappies have a deep and laterally compressed body. They are usually silvery-gray to green in color and show irregular or mottled black splotches over the entire body. Black crappies have rows of dark spots on their dorsal, anal, and caudal fins.
Its dorsal side is yellow and is separated from its white ventral side by a black band. It has three red lines across the top of its head, and it may have a dark spot on its dorsal fin.
Number of costal grooves equals 12. ; A. m. sigillatum: Wax yellow to tan dorsal stripe forming spotty to irregular shaped blotches along body ending in dots or specks of dorsal color on head. Number of vomerine teeth equals 44.
The holotype, an adult male, measures in snout–vent length. All dorsal surfaces, apart from the top of thigh, are very warty. Dorsal ground colour is dark green. There are somewhat inconspicuous, large, dark brown blotches on the back.
Males measure and females in snout–vent length. The snout is truncated in both dorsal and lateral views. The dorsum and dorsal portions of thighs are light olive-brown with dark blotches. There are dark stripes in the thighs.
Skin typically bears warts and ridges. The dorsal coloration varies from gray-brown to brown to orange-brown. Some individuals have a wide, light middorsal stripe. Most individuals have only some blackish spots and a vague, darker dorsal pattern.
The snout is rounded or roughly triangular in dorsal view. The mouth is slightly inferior (pointed downwards). The dorsal fin and pectoral fins have one spine. The pectoral fin spine has stronger odontodes anteriorly and small retrorse hooks posteriorly.
Ameiurus catus has a head with eight barbels, two nasal, two maxillary and four chin. It is scaleless. It has a spine on the anterior edge of its dorsal and pectoral fins. It usually has six dorsal soft rays.
The blotched triplefins are about 4 cm long. The males have black heads and yellow fins. The bodies are patterned with black and white blotches. There are 14 to 16 dorsal spines with 8 to 10 soft dorsal rays.
The dorsal, anal and caudal fins are olive green, with the soft dorsal, anal and anal fins having white lobe tips and the anal having white leading and distal edge. The pelvic and pectoral fins are hyaline to green.
Macroudidae is a family of deep sea fish, a diverse and ecologically important group, which are part of the order of cod-like fish, the Gadiformes. The species in the Macrouridae are characterised by their large heads which normally have a single barbel on the chin, projecting snouts, and slender bodies that taper to whip-like tails, without an obvious caudal fin but what there is of the caudal fin is often confluent with the posterior dorsal and anal fins. There are normally two dorsal fins, the anterior dorsal fin is quite high, the posterior quite low but is longer and takes up a greater proportion of the fish's of the back, species in the subfamily Macrouroidinae have a single dorsal fin. The long anal fin is almost as long as the second dorsal fin is nearly as long as the posterior dorsal, and sometimes it is longer.
Most have a series of small paired yellow dorsal spots on the abdomen.
The dorsal digital arteries of foot are small arteries which supply the toes.
Male lectotype: 1a. dorsal view; 1b. ventral view; 1c. genital capsule and 1d.
They have strong dorsal and pectoral fin spines. The adipose fin is small.
Dorsal view of Diaphorodoris papillata. The maximum recorded body length is 10 mm.
They also have 6-10 chromatophores in the dorsal surface of the mantle.
Its action is to draw the scapula to the dorsal and caudal region.
Male Pacific leaping blennies have prominent head crests and orange-red dorsal fins.
The dorsal and ventral fins are set fairly far back on the body.
The Dorsal Stream is shown in green and the Ventral Stream in purple.
On the dorsal surface of the cephalothorax, there is a prominent red stripe.
The abdomen is long and narrow. The tibiae lack a dorsal preapical bristle.
They possess smooth scales and have 21 dorsal scale rows at mid-body.
Cerci are longer than paraprocts, which are hatchet shaped with a dorsal knob.
Dorsal cirri present in addition to branchi on the first four setigerous somites.
First flagellomere elongate, slightly longer than scape and pedicel combined, without dorsal setula.
However, this urethra still does well since in still gets retrograde blood flow from the dorsal arteries. When patients have erectile dysfunction, the dorsal arteries do not work well and therefore the bulbar urethra does not get a good blood supply.
The gill-flap on the cheek (preopercle) each has five sharp spines. It has a first dorsal and a second dorsal fin that are separated by a gap. The pectoral fins are particularly large. The fish lacks an air-bladder.
The genus Caprodon can be distinguished from Odontanthias and other Anthiinae with teeth on the tongue, by the asymmetrical pectoral fins, the truncate caudal fin, the presence of a scaly dorsal sheath, and by the many-rayed soft dorsal fin.
Larva pale fuscous with simple long scattered spatulate hairs. There is a dorsal tuft of long black hairs from the second somite. There are sub-dorsal and sub-lateral black lines present. The second somite with a yellow band present.
This fish is distinguished from others of its type due to its suborbital groove, pelvic fin, large dorsal fin, irregular light and dark spots, and thin dorsal saddles. It is found in a freshwater environment, demersal zone, and tropical range.
Adult males measure and females, based on one measured specimen, in snout–vent length. The body is elongated and the head long. The snout is truncate in dorsal aspect and rounded in lateral and ventral aspects. There are four dorsal spines.
Ariid catfish have a deeply forked caudal fin. Usually, three pairs of barbels are present. They possess some bony plates on their heads and near their dorsal fins. At least some species have venomous spines in their dorsal and pectoral fins.
Teeth and jaw of a female Leafscale gulper shark. The leafscale gulper shark has no anal fin, two dorsal fins with spines, the first dorsal being relatively low and long, large eyes, and rough leaf-like denticles. Its maximum length is .
The forewings are ochreous yellow with two large purple-grey dorsal blotches confluent dorsally and extending from near the base to the tornus and reaching three-fourths across the wing. The hindwings are light yellowish, the dorsal half suffused light grey.
It is characterized by its very long jaw, silvery belly, lateral stripe, and single dorsal fin. The dorsal fin is located directly above the anal fin origin.DeLancey, L. Anchoa mitchilli. Comprehensive Wildlife Conservation Strategy, South Carolina Department of Natural Resources. 2006.
Nyctimystes trachydermis are relative large frogs, with adult males measuring in snout–vent length. One gravid female measured . Dorsal surfaces are roughed throughout with small, mostly conical and white-tipped asperities. Dorsal ground colour varies from dark greenish brown to gray.
Abdomen is black, marked with bright ochreous-yellow. Segments 1 and 2 have moderately broad lateral and mid-dorsal stripes. Segments 3 to 8 have fine stripes bordering the ventral borders of segments and mid-dorsal carina. Arial appendages are black.
The membrane between the dorsal fine spines is red while the posterior edges of the dorsal, anal, caudal and pectoral fins shows a white line. This species attains a maximum standard length of and has a maximum published weight of .
Ictalurid species have four pairs of barbels (commonly referred to as "whiskers" as applied to catfish). Their skin does not have any scales. The dorsal and pectoral fins usually possess a spine. The dorsal fin usually has six soft rays.
Adult males measure and females in snout–vent length. The dorsum is brown, or less commonly, green. The brown specimens have a dark bar between the eyes and a dorsal, forward-pointing triangle. These markings are occasionally replaced by dorsal spots.
Their dorsal fin is triangular, but their second dorsal and anal fins are long, continuous, and do not attach to the tail fin, much like an eel. The head is small, but has a large mouth with many small teeth.
Page withM. glabratus larvae (left two images, dorsal and ventral aspects) compared with Zaitzevia parvula larvae (right two images, dorsal and ventral aspects) Macronychus glabratus is a species of riffle beetle in the family Elmidae. It is found in North America.
Toes are moderately to extensively webbed and have small discs. Dorsal coloration varies from medium to dark brown. Coloration may appear uniform but typically includes some lighter and darker spots. Some individuals have a thick, light brown mid-dorsal stripe.
The lateral line curves slightly above the pectoral fin. The dorsal fin reaches the eye. The dorsal and anal fins are distant from the caudal fin. The anal fin contains 48 to 59 soft rays and is preceded by a spine.
Adult dentex can reach a length of , and weight up to . Body is oval and compressed. Teeth are very developed in each jaw. Dentex have 11 dorsal spines: 11–12 dorsal soft rays; 3 anal spines: 7–9 anal soft rays.
The tympanum is distinct. The dorsal ground color is brownish. There is a narrow, black mid- dorsal line and black canthal lines bordered with white. Two black stripes start from the eye and enclose a white or flesh-colored area.
Dorsal skin has many dermal ridges of varying size. The dorsum is khaki-colored, whereas the abdomen is almost whitish anteriorly and yellow posteriorly. A mid-dorsal stripe is present in some individuals. Males lack vocal sac (present in G. rugosa).
The fish has one lateral line, one dorsal fin and one anal fin. There are ten spines and 14 to 16 fin rays on the dorsal fin and three spines and 11 to 13 fin rays on the anal fin.
Neutrophilic dermatosis of the dorsal hands is a skin condition that presents with edematous pustular or ulcerative nodules or plaques localized to the dorsal hands.James, William; Berger, Timothy; Elston, Dirk (2005). Andrews' Diseases of the Skin: Clinical Dermatology. (10th ed.). Saunders. .
The several eyes of C. nigrimarginata are distributed marginally in the first millimeters of the body and posteriorly become dorsal, occupying almost the whole dorsal surface on the anterior third of the body, becoming less numerous towards the anterior tip.
The dorsal sepal is about long and wide, the lateral sepals about long and wide. The petals are shorter and narrower than the dorsal sepal. The labellum is long and about wide and curves downwards. Flowering occurs between April and June.
Kronichthys species are small, cylindrical fishes similar to the hypoptopomatine Schizolecis. The color pattern is dark brown with a slight mottling or four dorsal saddles, and the abdomen mostly white. The dorsal fin is short and the adipose fin is small.
The levator scapulae is supplied by the dorsal scapular artery. Normally, this artery has a small branch which passes laterally to the supraspinatus fossa of the scapula, and in a third of cases, this branch supplies the muscle. If the dorsal scapular artery comes off the transverse cervical artery, the parent transverse cervical artery splits, the dorsal scapular artery passes medially, while the transverse cervical artery passes laterally.
The Asian garden dormouse is a moderate-sized species with a head-and-body length of and a tail of . The dorsal fur is soft, and sometimes woolly, yellowish-grey, yellowish-brown or reddish-brown. The underparts and hind feet are white or cream, sometimes tinged with grey, and clearly delineated from the dorsal pelage. The head is paler at the muzzle but otherwise matches the dorsal colouring.
The anterolateral margin of medial row of the dorsal osteoderms have a rounded lateral lobe and the lateral row of dorsal osteoderms are square in shape with rounded corners. In D. phosphaticus there are four longitudinal rows of square osteoderms that are thin and have shallow and wide pits. The osteoderms are square and the anterolateral margin of the medial dorsal osteoderms have an acute rounded process directed laterally.
Female M. brevicauda has a narrow procorpus, a large metacorpus, a large glandular region that has one dorsal and two subventral esophageal gland lobes. Two large nucleated esophago- intestinal cells are at the dorsal base of the metacorpus junction with the intestine. The labial disc and lips are prominent and protrude from the regular body contour. The perineal pattern appears with high squared dorsal and ventral arches without prominent lateral lines.
The disk-shaped body is very deep and compressed, and the snout is blunt. There are 9 dorsal spines and 21-24 soft dorsal rays, and there are 3 anal spines and 17-19 anal rays. The second dorsal and anal fins of adults have long, trailing anterior lobes, giving an "angelfish-like" appearance. The body is silver in color with irregular black vertical bands that fade gradually with age.
The first dorsal fin has an orange stripe at its base and a wider and darker reddish brown stripe at its tip. The second dorsal fin has a number of reddish stripes. The lobes of the tail are marked with indistinct crossbars. There are a total of 9 spines in the dorsal fins and 8 soft rays while the anal fin has 2 spines and 6 soft rays.
The Indo-Pacific sailfish has a prominent dorsal fin. Like scombroids and other billfish, they streamline themselves by retracting their dorsal fins into a groove in their body when they swim. The huge dorsal fin, or sail, of the sailfish is kept retracted most of the time. Sailfish raise them if they want to herd a school of small fish, and also after periods of high activity, presumably to cool down.
The dorsal sepal and petals are fused, forming a hood or "galea" over the column and the dorsal sepal tapers to a point. The petals are wider than those of similar greenhoods and extend beyond the end of the dorsal sepal. The lateral sepals are held closely against the galea, long and have thickened, club-like tips. The labellum is small and not visible from outside the flower.
Dorsal spines (total): 13; Dorsal soft rays (total): 17-18; Anal spines: 3; Anal soft rays: 18. Overall pale with a broad black bar bordered by a narrow pearly white band running across the upper side from the front of the eye to the posterior portion of the soft dorsal fin. A similar broad black band with pearly white border runs submarginal on the caudal and anal fins.
Vertebral anatomy of the holotype skeleton. Top: Sixth dorsal vertebra in back (A) and right side view (B). Bottom: Second caudal vertebra in back (C) and side view (D). Though the vertebral column of the trunk or torso is incompletely known, the back of Brachiosaurus most likely comprised twelve dorsal vertebrae; this can be inferred from the complete dorsal vertebral column preserved in an unnamed brachiosaurid specimen, BMNH R5937.
Amblyglyphidodon flavilatus has a total of thirteen dorsal spines, these would be spines on the top or back of the fish. It also has eleven to thirteen dorsal soft rays, which are segmented fin rays that are composed of two closely joined lateral elements. The dorsal soft rays are almost always flexible and often branched. The Amblyglyphidodon flavilatus has two anal spines, and eleven to thirteen anal soft rays.
Head of Japanese sea bass. The Japanese sea bass has a slightly forked tail and a large mouth which has the lower jaw protruding beyond the upper jaw. The young fish have small black spots on the back and dorsal fin which tend to lost in larger fish. Its body has 12 to 15 spines in the first dorsal followed by 12 to 14 soft rays in its second dorsal.
Similarly, the dura in this situation is called the pachymeninx. There are two subdivisions of arachnoid mater surrounding the subarachnoid space, the dorsal layer and the ventral layer. The dorsal layer covers internal cerebral veins and fixes them to the surrounding tela choroidea. The ventral layer of arachnoid membrane, on the other hand, is a direct anterior extension of this arachnoid envelope that the dorsal layer forms over the pineal region.
The butterfly blenny has a deep body at the front, tapering rather quickly to the caudal peduncle. It can grow as large as in length. It has 11 to 12 dorsal spines, 14 to 16 dorsal soft rays, 2 anal spines and 15 to 16 anal soft rays. It has tentacles on the nasal opening, above the eye and on the nape near the first dorsal fin ray.
The first dorsal fin is tall and positioned slightly closer to the pectoral fins than the pelvic fins. The pelvic fins are almost as large as the first dorsal fin and bear long, thin claspers in males. The second dorsal and anal fins are tiny, with the former positioned ahead of the latter. Crescent-shaped notches occur on the caudal peduncle at the upper and lower origins of the caudal fin.
The size of this fish is up to . Its body is compressed laterally and is endowed with a dorsal fin starting from the top of the head until joining practically the superior base of the caudal fin. When the dorsal fin is spread, it looks like a toothed crest. The 12 to 15 spines of the dorsal fin are venomous, and it has seven or eight soft rays.
The front edges of the dorsal fins and the pectoral fins are hardened into stiff spines that can be locked into place. The body shape is cylindrical along its entire length. M. hirsuta can be distinguished from other members of the genus Microsynodontis by examining the dorsal spine, and the Tubercles on the head. The dorsal spine is straight, whereas all other species in the genus have gently curved spines.
The mandibular barbels have short and broad branches. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. marmoratus, the spine of the dorsal fin is short, about half the length of the head, smooth in the front and serrated on the back. The remaining portion of the dorsal fin is made up of seven branching rays.
An extensor expansion (extensor hood, dorsal expansion, dorsal hood, dorsal aponeurosis) is the special connective attachments by which the extensor tendons insert into the phalanges. These flattened tendons (aponeurosis) of extensor muscles span the proximal and middle phalanges. At the distal end of the metacarpal, the extensor tendon will expand to form a hood, which covers the back and sides of the head of the metacarpal and the proximal phalanx.
The suborbital tooth is strong and sharply pointed, visible in dorsal view; the suborbital margin is evenly curved and tuberculate. The cheliped merus has a sharp spine subdistally and with a distal dorsal spine; carpus roughened dorsally, with distal outer spine, denticulate anterior margin, and strong and slender distal spine. Its right chela has a distal angled projection. The meri of its walking legs have a distinct distal dorsal spine.
This type of fibrosis often leads to renal failure, and is predictive of end stage renal disease. BMP7 has been discovered to be crucial in the determination of ventral-dorsal organization in zebrafish. BMP7 causes the expression of ventral phenotypes while its complete inhibition creates a dorsal phenotype. Moreover, BMP7 is eventually partially "turned off" in embryonic development in order to create the dorsal parts of the organism.
The membranes between the dorsal fin spines are distinctly incised. The caudal fin is rounded. The adults are an overall greyish brown colour. The juveniles are a similar colour but are marked with large white spots over their body and the bases of the dorsal and anal fins with darker dorsal, anal and pelvic fins, while the outer parts of the caudal and, in some specimens, the tail is white.
At the early blastoderm stage, Dpp signaling is uniform and low along the dorsal side. A sharp signaling profile emerges at the dorsal midline of the embryo during cellularization, with high levels of Dpp specifying the extraembryonic amnioserosa and low levels specifying the dorsal ectoderm. Dpp signaling also incorporates a positive feedback mechanism that promotes future Dpp binding. The morphogen gradient in embryos is established via a known active transport mechanism.
The head of the racer goby from the Dnieper River near Kiev It has 7-8 dorsal spines, 14-18 dorsal soft rays, a single anal spine and 12-16 anal soft rays. This species is distinguished from its relatives in Neogobius based on multiple characteristics. B. gymnotrachelus has diagonal bars of irregular position and shape. The first branched ray of second dorsal is about as long as its penultimate ray.
Post-operation, the "top" of the eye is now Ventral, and the bottom is Dorsal. When a food source was above the frog, it extended its tongue downwards; meaning that the Dorsal- Ventral orientation of the eye still remained. In follow up experiments, the eye was detached and rotated 180° and the optic nerve was also cut to see if this would affect the Dorsal-Ventral orientation. The results were identical.
The central cells of apical and dorsal laminae are unistratose and smooth, up to 12 micrometres wide, hexagonal-rhomboidal shaped with thin walls and no marginal thickenings. # The dorsal lamina is the section of the leaf edge opposite the sheathing part and the ventral lamina, extending the total length of the leaf on the backside of the costa. Dorsal lamina is not decurrent, mostly decreased to extinction at the leaf base.
The medial dorsal cutaneous nerve (internal dorsal cutaneous branch) passes in front of the ankle-joint, and divides into two dorsal digital branches, one of which supplies the medial side of the great toe, the other, the adjacent side of the second and third toes. It also supplies the integument of the medial side of the foot and ankle, and communicates with the saphenous nerve, and with the deep peroneal nerve.
The condyles and cotyles are weakly dorsoventrally compressed. The cervical vertebrae are almost the same size as the longest dorsal vertebrae and get to a length of about 7.2 cm and a height of 4 cm. 26 dorsal vertebrae are preserved in the specimen, though most are poorly preserved. Dorsal vertebrae are a little longer than the cervical and like the cervicals, the condyles and cotyles are weakly compressed dorsoventrally.
It is unclear how many dorsal vertebrae Corythoraptor had because the specimen only preserves the first 6 vertebrae. The dorsal vertebrae are shorter than the neck vertebrae, but the 2nd and 3rd dorsal vertebrae have larger pleurocoels. The anterior articular surface is slightly concave, and the posterior articular surface nearly flat. Only the last 2 sacral vertebrae are preserved, and each are smooth, round, and bear a small pleurocoel.
The dorsal surface is covered by small, roughly conical dermal denticles. This species is grayish brown above, darkening around the eyes and on the snout and becoming translucent at the trailing fin margins. There are blackish saddle markings below the dorsal fin bases, and sometimes also large, dark blotches and "eyespots" scattered over the dorsal surface. The underside is almost completely white, with a black leading margin on the pectoral fins.
There is a dusky band along the margin of the soft rayed portion of the dorsal fin except for a white tip on highest anterior part. The tip of the snout and the tip of the chain are blackish. The dorsal fin is deeply notched. There are 10 spines and 10-11 soft rays in the dorsal fin with 3 spines and 10-12 soft rays in the anal fin.
The black speckling on the back and flanks is consistent however. The spiny dorsal fin is moderate in height and is partially separated by a notch from the high, rounded soft dorsal fin. Soft dorsal, anal and caudal (tail) fins are all large and rounded, and are light grey to dark grey or black with distinct white edges. The large, rounded pectoral fins are usually similar in colour to flanks.
Upeneichthys vlamingii has a moderately long and compressed body with a rounded dorsal profile which is steep in front of first dorsal fin. It has a long snout and is small eyed with a small mouth which has fleshy lips which do not reach the front of the eye. It has two dorsal fins. The first is spiny and is taller and shorter base than the second which contains soft-rays.
The medium-sized first dorsal fin originates just behind the pectoral fin rear tips. The second dorsal fin is about two-thirds as tall as the first, and there is no midline ridge running between them. The pelvic fins are broad and slightly larger than the anal fin. The anal fin has a strong notch in the trailing margin and is positioned slightly behind the second dorsal fin.
Weejasperaspis gavini is an extinct acanthothoracid placoderm found in the Taemas-Weejasper Reef, of the Early Devonian-aged Buchan Group in eastern Victoria, Australia. Weejasperaspis differs from other acanthothoracids in that the median dorsal crest is short, and triangular-shaped. Its sister genus, Murrindalaspis, differs from it by having large, blade-like median dorsal crests that are recurved. Like Murrindalaspis, it is only known from a dorsal plate and ossified eyeballs.
Both rhomboid muscles also derive their arterial blood supply from the dorsal scapular artery.
The superficial dorsal veins of clitoris is a tributary of the external pudendal vein.
It may not display either rubican markings ("white ticking"), nor a dorsal mule- stripe.
The anal fin is usually equal in length or longer than the dorsal fin.
It is somewhat distinctive for having a single long dorsal fin which leans back.
Males are smaller, more slender and have a more pointed dorsal fin than females.
The belly is unpigmented apart from some minute gray spots. Dorsal skin is smooth.
C. equatoriana has 17 rows of dorsal scales at midbody (C. clelia has 19).
The dorsal fin has become modified to a single spine located under the rostrum.
The dorsal stream (green) and ventral stream (purple) originating in the primary visual cortex.
Tympanum absent. Tail is short and prehensile. Dorsal scales enlarged. Gualr sacs laterally compressed.
Snout short. Dorsal scales with smooth granules. Median sub-caudals are enlarged. Ventrals smooth.
Posterior spinal veins are small veins which receive blood from the dorsal spinal cord.
The dorsal ridges are white to light red whereas the dorsolateral ridges are white.
Among these adaptations are the 13 dorsal spines that protect the animal when necessary.
Tadpole of Scinax onca in dorsal, ventral, and lateral views. Scale bar 5 mm.
Penis with ventral plate well defined, glans may bear ventral and/or dorsal processes.
The haptor includes sclerotized elements, namely a ventral bar, two lateral (dorsal) bars, two ventral hooks, and two dorsal hooks, and fourteen hooklets. As in most diplectanids, the haptor bears characteristic, structures called squamodiscs (one ventral and one dorsal). The squamodiscs of species of Calydiscoides are special: they are lamellodiscs, which are made up of concentric lamellae, not separate rodlets as in regular squamodiscs. The diameter of the lamellodiscs range 25–60 µm. When observed from its concentric axis (ventral or dorsal observation of the specimen, ‘polar’ view of the lamellodisc), the lamellodisc appears as concentric circles.
The sensory modality that is detected by the afferent fibers is an important factor to consider because it determines the pathway that the dorsal root ganglion neurons will take within the central nervous system. The sensory neurons coming from the body synapse in the dorsal horn of the spinal cord, bringing in information about touch sensations (epicritic), or modalities of pain (protopathic). While both types of sensory neurons must first synapse in the dorsal horn of the spinal cord, the area of the dorsal horn where they synapse is different. Their pathway to the thalamus is also different.
Polydactylus plebeius is a medium-sized threadfin which attains a maximum total length of but is more commonly . It has a pointed snout and the dorsal profile of the head is nearly straight. There are two separate dorsal fins, the first containing 8 spines which all have a base of similar thickness and the second dorsal fin has a single spine and 12 or 13 soft rays. The anal fin has 3 spines and 11 or 12 soft rays and has a base with is roughly equal in length to that of the second dorsal fin.
They also assert that swordfish "use sensitive rostrum/lateral-line sensors to detect upcoming/ambient water pressure and attain the best attack angle to capture the body lift power aided by the forward-biased dorsal fin to compensate for most of the water resistance power." Billfish have prominent dorsal fins. Like tuna, mackerel and other scombroids, billfish streamline themselves by retracting their dorsal fins into a groove in their body when they swim. The shape, size, position and colour of the dorsal fin varies with the type of billfish, and can be a simple way to identify a billfish species.
Viral overexpression of ΔFosB in the output neurons of the nigrostriatal dopamine pathway (i.e., the medium spiny neurons in the dorsal striatum) induces levodopa-induced dyskinesias in animal models of Parkinson's disease. Dorsal striatal ΔFosB is overexpressed in rodents and primates with dyskinesias; postmortem studies of individuals with Parkinson's disease that were treated with levodopa have also observed similar dorsal striatal ΔFosB overexpression. Levetiracetam, an antiepileptic drug, has been shown to dose-dependently decrease the induction of dorsal striatal ΔFosB expression in rats when co-administered with levodopa; the signal transduction involved in this effect is unknown.
The body is similar to other ghost knifefishes, being laterally compressed with a long anal fin, a small caudal fin, and no dorsal or pelvic fins. There is a dorsal filament originating posterior to the midpoint of the body. The coloration is pinkish-white to translucent, with varying numbers of grayish-brown to black chromatophores on the upper sides of the body. The chromatophores are most concentrated at the dorsal midline, with the dorsal filament usually the darkest, and there are also thin, vertical lines of chromatophores on the connective tissue between the anal fin radial muscles.
The common percarina is distinguished from its congener P. maeotica by having no scales on its cheek, by having nearly transparent membranes on the body and fins, the upper body is milky white in colour with no spots. It also has 8-9 round or irregular markings on the base of both dorsal fins. The dorsal fins are clearly separate in both species of Percarina and in this species the first dorsal fin contains 9-10 spines while the second dorsal fin contains 3 spines and 10-12 soft rays. The anal fin has 2 spines and 8-11 soft rays.
The major input to the cochlear nucleus is from the auditory nerve, a part of cranial nerve VIII (the vestibulocochlear nerve). The auditory nerve fibers form a highly organized system of connections according to their peripheral innervation of the cochlea. Axons from the spiral ganglion cells of the lower frequencies innervate the ventrolateral portions of the ventral cochlear nucleus and lateral-ventral portions of the dorsal cochlear nucleus. The axons from the higher frequency organ of corti hair cells project to the dorsal portion of the ventral cochlear nucleus and the dorsal-medial portions of the dorsal cochlear nucleus.
The yellowtail barracuda has an elongated body with two well separated dorsal fins, the anterior dorsal fin has five spines with the first spine being the longest. The origin of the second dorsal fin is positioned slightly in front of that of the anal fin. The pelvic fin is located below the tip of the pectoral fin, which in turn is positioned in front of the origin of the anterior dorsal fin. The large head is slightly flattened towards the rear and bears a large eye, pointed snout and long jaws, with a prognathic lower jaw.
Anatomical terms used to describe a human hand Several anatomical terms are particular to the hands and feet. For improved clarity, the directional term palmar () is usually used to describe the front of the hand, and dorsal is the back of the hand. For example, the top of a dog's paw is its dorsal surface; the underside, either the palmar (on the forelimb) or the plantar (on the hindlimb) surface. The palmar fascia is palmar to the tendons of muscles which flex the fingers, and the dorsal venous arch is so named because it is on the dorsal side of the foot.
The nerve supply comes from the dorsal scapular nerve, with most of its fibers derived from the C5 nerve root and only minor contribution from C4 or C6. , p. 4 The rhomboid minor gets its arterial blood supply from the dorsal scapular artery.
The deep dorsal vein of the penis, the cavernosal veins of the penis, and the para-arterial veins of the penis are inside Buck's fascia, but the superficial dorsal veins of the penis are in the superficial (dartos) fascia immediately under the skin.
Adults are orange, but the dorsal hindwings are slightly lighter coloured than the forewings. Furthermore, the ventral surfaces are paler than the dorsal surfaces. Adults are on wing in January, September, November and December., 1994: Systematics of the Neotropical moth family Dalceridae (Lepidoptera).
Its body is deep, the dorsal and ventral profile is convex and the lower jaw exceeds the premaxilla. The dorsal fin is placed forward with respect to the pelvic fin.De la Maza-Benignos, M. and L. Vela- Valladares. 2009. “Cyprinodon julimes sp. nov”.
However, ample evidence indicates that object identity and location are preferentially processed in ventral (occipito-temporal) and dorsal (occipito-parietal) cortical visual streams, respectively. Comparison of rCBF during performance of the two tasks again revealed differences between the ventral and dorsal pathways.
Cell group B6 is located in the floor of the fourth ventricle dorsal to, and between, the right and left medial longitudinal fasciculus of the pons in the primate and the rodent. and forms the caudal portion of the dorsal raphe nucleus.
The South Dorsal or Dorsal of Adeje is part of the last of the structural axis. The remains of this massive rock show the primordial land, also showing the alignment of small volcanic cones and rocks around this are in Tenerife's South.
Schilbid catfishes usually have dorsal fins with a short base and a spine, but Parailia lack a dorsal fin altogether. Most species also possess an adipose fin. The base of the anal fin is very long. There are usually four pairs of barbels.
They have no dorsal spines, 116-130 dorsal soft rays, no anal spines, 85-98 anal soft rays, and 50-57 vertebrae. The average size of this species is 30 cm (12 in) and the max length is 40 cm (16 in).
Blouw, D. M., & Hagen, D. W. (1981). Ecology of the fourspine stickleback, Apeltes quadracus, with respect to a polymorphism for dorsal spine number. Canadian Journal of Zoology, 59(9), 1677-1692. The fourth spine is straight and associated with the dorsal fin.
Known from fragments from the Givetian-aged "Traverse Group" stratum in Michigan. The median dorsal plates range up to 20 cm in length. The median dorsal plate is fairly broad at the posterior end, but narrows as one approaches the anterior end.
The thinlip splitfin is dark brownish above and paler below. It has 10 dorsal spines, 9 dorsal soft rays, 2 anal spines, and 9 anal soft rays. It attains a maximum size of total length , reaching sexual maturity at a total length of .
The body is strongly compressed. The dorsal head profile is steep, with a rounded snout. The body is greenish-brown to silvery with many brown to red-brown spots. Spines and rays of the dorsal fin are separated by a deep notch.
They have 10 dorsal fins and 12 anal fins. Adult males have long filaments on their tail fin lobes and prolonged rays posteriorly on the dorsal and anal fins. They have 17 pectoral rays. The lateral line is unbroken and smoothly arched.
Males measure in snout–vent length; females are larger. They have a slender body. The dorsal colour is dark brown with an X-shaped lighter area. There line between the darker dorsal parts and the white or cream-coloured belly is quite sharp.
In males, the dorsal skin has a mixture of small and large tubercles with keratinized points, whereas in adult females the dorsal tubercles are very dispersed. The head is almost as long as wide; the snout is truncated. The finger disks are expanded.
Segments 3 to 8 have pale basal annules interrupted on dorsum, and formed by two elongate parallel spots. There is a triangular apical sub-dorsal spot and a pale mid- dorsal spot. Anal appendages are creamy-white. Female is similar to the male.
It has a lateral line which is incomplete and often divided into two sections. The dorsal fin is deeply notched and has its origin in front of the pelvic fins. The first spine of the dorsal spine is small and projects forwards.
In comparison, the southern sleeper shark differs from S. microcephalushas in having more tooth rows in the lower jaw, a shorter interdorsal region, a more posterior first dorsal fin, and fewer precaudal vertebrae, and from both species in having lower dorsal fins.
In mid dorsal region, these dorsal blotches are broken to form an undulating dark stripe. Juveniles are grey in color. Tail which is 12 to 15 in the total body length, contains 5–12 pale bands. Head contains black spots and markings.
Adult males measure and adult females in snout–vent length. The snout is acuminate to subacuminate in dorsal view. The tympanum is just discernible; the supratympanic fold is low and not obscuring the tympanum. Dorsal skin is smooth but has scattered, pungent warts.
The fingers and toes have rounded tips and no webbing. The hind legs are short. The holotype has orange-tan dorsal ground color, dark brown dorsal markings, and a white vertebral stripe bordered with black. However, most specimens lack the vertebral stripe.
The collar is well marked. The ventral plates are smooth, feebly imbricate and arranged in 6 longitudinal series. The dorsal scales are smooth or keeled. Back with 2 to 6 longitudinal series of enlarged plate-like scales along the dorsal mid-line.
Dorsal coloration is brownish with faint lateral and dorsal yellowish longitudinal bands. The warts are darker brown. Ventrally the coloration is bluish or brownish, with scattered white granuli. The male advertisement call is a trill constituted by a repeated and pulsed note.
There are also blackish scattered scales, especially towards the apex. The costal fringes are light greyish and the dorsal fringes are more greyish proximally covered with light dorsal wing scales. The underside is dark grey. The hindwings are grey with grey fringes.
The wingspan is 21–23 mm. The forewings are pale reddish fawn, shading to tawny on the dorsal half. A triangular pale reddish fawn dorsal patch beyond the middle, its apex reaching the lower margin of the cell. The hindwings are fawn grey.
Its eyes are of moderate size, with round pupils. The dorsal scales are smooth and very oblique. Dorsal scale count is usually 25-19. Some colouration and pattern differences occur between Javan specimens and those from the other islands where this species occurs.
The specific name otrynter is derived from Latin, and means a driver, in allusion to the whip-like ray of the second dorsal fin. The common names of the species, threadfin jack and thread pompano, also refer to the filamentous, threadlike dorsal fin.
The melon, which is not very prominent, slopes quite steeply to the short beak. The dorsal fin is triangular to slightly hooked, small, and rounded at the tip. The leading edge of the dorsal fin joins the body at a sharp angle.
The eyes are small in size with round pupils. Dorsal scales are smooth anteriorly and weakly keeled on the posterior part of the body and tail. They are very glossy throughout. Dorsal scale count 27 (24 to 29) - 23 (21 - 25) - 17.
Mojarras are silvery in color and fairly diamond-shaped. They have smooth scales, anal spines, and forked tails. Mojarras have a single dorsal fin, with spines of decreasing length along the fin. The dorsal and anal fins have scaly sheaths at their bases.
Ventrals nearly two times as broad as the contiguous scales. In females dorsal scales of the tail smooth or faintly keeled. In males all the dorsal scales of the tail plus the last ventrals pluricarinate. Tail ending in a simple laterally compressed point.
Tibiae are without a dorsal preapical bristle. The wing is unmarked in almost all species. The costa has a subcostal break; the subcosta is parallel to vein R1 and merging with that vein just before the costa. Tibiae without dorsal preapical bristle.
The level of fusion of the dorsosacral confirms the evolutionary history of the sauropod sacral count: the primordial pair incorporating first a dorsal (total of three), then a caudal (total of four), then another dorsal to make a total of five vertebrae.
The Field Museum. Chicago, IL. racemose inflorescence grows from a terminal ancipitous spathe, 5.5 cm long. The sepals are ovate and acute, the dorsal 5 mm long, the laterals oblique and larger than the dorsal. The linear-acute petals are three-veined.
This fish is rather flat, like a pancake, with a circular body shape, a pointed snout-like nose, and small scales. The blue tang has nine dorsal spines, 26–28 dorsal soft rays, three anal spines, and 24–26 anal soft yellow rays.
Thread-sail filefish grow to a maximum adult length of about . The first dorsal fin is a strong retractable (folding backwards) spine. The second dorsal fin and anal fin are soft. They have comparatively small pectoral fins and truncated, fan-shaped tail fins.
This species is light grey or bronze above, often with small white spots on the sides, and pale below. The dorsal fins are tipped in white, which is especially obvious on the second dorsal as the remainder of fin is mostly dark.
In order to distinguished loach minnow from the similar speckled dace, the loach minnow have whitish spots that are present on the origin and insertion of the dorsal fin as well as on the dorsal and ventral portions of the caudal fin base.
The thorax upperside is dark green and there are no dorsal lines on the abdomen.
However it does have a caudal and dorsal fin. Both are covered in similar scales.
The specific name, catenifer, is Latin for "chain-bearing", referring to the dorsal color pattern.
The deep dorsal vein of clitoris is a vein which drains to the vesical plexus.
They do so most commonly when they are lying on their dorsal or ventral surfaces.
The posterior branches of thoracic nerves branch from the dorsal rami of the thoracic nerves.
The posterior branches of cervical nerves branch from the dorsal rami of the cervical nerves.
Some species have venomous dorsal spines and are capable of inflicting serious injuries if handled.
Dorsal scales smooth, without pits. Tail very short, obtuse. Subcaudals in two rows.Boulenger, G.A. (1896).
The hana fusa or white pompom oranda is an elegant pompom with a dorsal fin.
The iris is almost entirely black. The dorsal surfaces have some warts. Tympanum is absent.
The dorsal colouration varies from yellow to black. A light vertebral stripe is often present.
Dorsal skin has irregularly distributed tubercles interspersed with small spinules. The throat is uniform cream.
On the dorsal side of the skull and positioned more posteriorly there is a foramen.
All species have a dorsal fin to prevent themselves from involuntarily spinning in the water.
Body colour is brown-pink with dark edges to the dorsal, caudal, and anal fins.
These interconnect with the sympathetic cardiopulmonary nerves to form the ventral and dorsal cardiopulmonary plexuses.
Some other forms are characterized by having smooth skulls and armor on the dorsal midline.
Tribodus is found to have dorsal fin-spines and head spines, though only in males.
Its dorsal and anal fin spines contain venom that is not life-threatening to humans.
The rest of it is gray, except for the area right under the dorsal fin.
Segment 14 has the anus on its dorsal surface, and segment 15 forms a sucker.
It can be distinguished from congeners by the unique number of dorsal fin spines (18).
It is caused by degeneration of the posterior (dorsal) white column of the spinal cord.
Juveniles are occasionally used in saltwater aquariums, noted for their filamentous anal and dorsal fins.
From here, sensation travels to the brain via the dorsal columns in the spinal cord.
The male is smaller, long, with a very large dorsal tibial apophysis and characteristic embolus.
The dorsal scales are smooth, without apical pits, and arranged in 15 rows at midbody.
Dorsal and frontal view of Phloeoditica curta (A), Phloeoditica elegans (B), Pseudoxylechinus setosus (C, D).
Full article: The forewings have a brownish ground colour with eight oblique, creamish dorsal lines.
Truncate dorsal and anal fins. Pectoral fins slightly developed. Caudal fin forked and tips pointed.
The dorsal carina has no obvious tubercles or spines. The ventral surface is sparsely bristly.
A juvenile exhibiting filamentous anal and dorsal fin rays Like many of the Carangidae, the African pompano is a deep and laterally compressed fish, with the deepest point of the body located between the origin of the dorsal and anal fins and having the head and tail tapering either side. The dorsal and ventral profiles are equally convex, with a major distinguishing feature of the adult being its more curved head compared to Alectis indicus' more angular head profile. The species has four to seven visible spines in the first dorsal fin followed by a single spine and 18 to 20 soft rays in the second dorsal. The anal fin has two spines followed by 15 or 16 soft rays, while the pectoral fin is long and curved.
Underside of a Pareiorhina hyptiorhachis Pareiorhina species all have lateral borders of the head without developed bristles, a naked abdomen, dorsal plates meeting along the mid-dorsal line between the dorsal and caudal fins, no adipose fin, ventral plates covering the midventral line, and the dorsal portion of body behind dorsal fin flatenned (flat caudal peduncle with a rectangular cross section). In P. carrancas and P. rudolphi, the teeth are simple, while in P. brachyrhyncha, the teeth have a minute lateral cusp at the base of the main cusp. P. brachyrhyncha and P. carrancas are unique in lacking an adipose fin and azygous plates; in loricariids without an adipose fin, it is usually replaced by a series of azygous plates that form a ridge. However, these two species lack both the fin and the ridge.
The species within Atherion are characterised by having rough, sharkskin-like denticles around the mouth and in other places on the head. The origin of the first dorsal fin is to the rear of the pelvic fin tip. The first dorsal fin has 3–6 spines while the second dorsal fin has a single spine and 8–13 soft rays. The anal fin also has a single spine and has 13–17 soft rays.
The palmar interosseous muscles adduct the fingers towards the middle finger. This is in contrast to the dorsal interossei, which abduct the fingers away from the middle finger. In addition (like dorsal interossei) they flex the finger at the metacarpo-phalangeal joint and extend the finger at the interphalangeal joint and thus assist the lumbricals. The palmar interossei, together with the dorsal interossei and the lumbricals, are active components of the finger's extensor mechanism.
This induces the roof plate to begin to secrete BMP, which will induce the alar plate to develop sensory neurons. Opposing gradients of such morphogens as BMP and SHH form different domains of dividing cells along the dorsal ventral axis. Dorsal root ganglion neurons differentiate from neural crest progenitors. As the dorsal and ventral column cells proliferate, the lumen of the neural tube narrows to form the small central canal of the spinal cord.
The five pairs of gill slits are minute. The small dorsal fins have rounded apices and are placed far back, on the last third of the body. The first dorsal fin originates slightly ahead of the pelvic fins, while the second dorsal originates closely behind and measures almost a third again the height of the first. The pectoral fins are small and rounded, and positioned relatively high on the body behind the fifth gill slit.
The former has black caudal and anal fins, while the latter is an Indian Ocean species and has a more conspicuous back patch below the dorsal fin and a mainly yellow anal fin.Lieske, E. & Myers, R.F. (2004): Coral reef guide – Red Sea. HarperCollins, London. Chaetodon lunulatus can grow up to 14cm long. It has about 13-14 dorsal spines, 20-22 dorsal soft rays, three anal spines, and 18-21 anal soft rays.
The first dorsal fin originates over the pectoral fin free rear tips, and the much smaller second dorsal fin originates over the last third of the anal fin base. The dorsal fins do not have a ridge between them. The lower lobe of the caudal fin is well-developed and the upper lobe has a ventral notch near the tip. This shark is plain gray, brown-gray, or purple-gray above, and white below.
The dorsal sepal and petals are fused, forming a hood or "galea" over the column. The dorsal sepal is long, wide and has a rough surface. It is erect near its base, then curves forward with the dorsal sepal longer than the petals. The lateral sepals are more or less erect with narrow tips long with a deep notch in the sinus between them and a wide gap between them and the galea.
Female markings are similar to those of B. philenor, allowing females to engage in dorsal mimicry to reduce risk of predation by birds that preferably prey on the black swallowtail. Females have evolved dorsal mimicry because they spend more time revealing their dorsal wing side during oviposition. The ventral wing surface of the black swallowtail also mimics that of B. philenor, so both males and females are protected when their ventral wing surface is displayed.
The dorsal pattern is fused into a broad, wavy or zigzag dark stripe that contains a straight-edged, pale stripe about three scales wide. This pattern stands out clearly against the ground color, which is particularly light along the edges of the dorsal pattern. Series of dark vertical bars or extended ovals run along the flanks, opposing the indentations of the dorsal pattern. The aforementioned middorsal stripe may be pale beige or grey.
In E. gameroi, an oblique band crossing from the dorsal profile of the caudal peduncle to the middle-upper rays of the caudal fin. In E. melaphareus, an inconspicuous patch exists on the dorsal lobe of the caudal fin. In E. radiosus, the distal half of both the dorsal and ventral caudal fin lobes is pigmented. E. melaphareus also has pigmented pectoral and pelvic fins, while these fins in the other three species are unpigmented.
The ventral and dorsal pancreatic buds (or pancreatic diverticula) are outgrowths of the duodenum during human embryogenesis. They join together to form the adult pancreas. The proximal portion of the dorsal pancreatic bud gives rise to the accessory pancreatic duct, while the distal portion of the dorsal pancreatic bud and ventral pancreatic bud give rise to the major pancreatic duct. The ventral pancreatic bud develops into the pancreatic head and uncinate process.
The outer pair of mandibular barbels has three simple branches, and the inner pair has five or six simple branches. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. courteti, the spine of the dorsal fin is about half the length of the head, smooth in the front. The remaining portion of the dorsal fin is made up of seven branching rays.
Teeth are absent on the vomer, the small bone in the roof of the mouth, and the tongue has two longitudinal ridges. A little tunny The snout is shorter than the rest of the head. The little tunny has a dorsal fin with 10 to 15 tall, descending spines, as well as a much smaller second dorsal fin followed by eight finlets. At the base, the two dorsal fins are separated by a small interspace.
The dorsal fin contains 11 spines and 14-15 soft rays while the anal fin has 3 spines and 8-9 soft rays. The membranes between the dorsal fin spines are deeply notched. The caudal fin is rounded. The adults have an overall colour of chocolate brown marked with pale spots and 9-10 dark vertical bars on the head and the body which extend on to the dorsal and anal fins.
This is thought that inducing osteoblastic commitment and differentiation of stem cells such as mesenchymal stem cells.BMPs are known to play a large role in embryonic development. In the embryo BMP4 helps establish dorsal-ventral axis formation in xenopus through inducing ventral mesoderm. In mice targets inactivation of BMP4 disrupts mesoderm from forming. As well establishes dorsal-ventral patterning of the developing neural tube with the help of BMP7, and inducing dorsal characters.
Craterocephalus eyresii is a small drab yellowish-grey coloured fish with greenish-silvery underside, and a silver mid-lateral stripe which has some dark melanophores around it., and transparent to yellowish fins. There are two dorsal fins which are widely separated with the first dorsal fin originating before the tips of the ventral fins and the anal fin origin lies directly underneath the origin of second dorsal fin. The caudal fin isforked.
The first few rays of the dorsal fin are black, and both the dorsal and caudal fin are edged in a pinkish red. The anal and pelvic fins are the same shade of red throughout with bright blue rays and dots. The species displays only limited sexual dimorphism, mature males being slightly larger and in some cases showing longer extensions on both the caudal fin and the posterior of the dorsal fin.
The dorsal color of these snakes may be brown, olive green, gray, red, orange, or pink. Ventral colors include the same as the dorsal, with the addition of yellow. Dorsal patterns may include stripes and there is typically a black stripe running down the center of the belly, which explains both the common and scientific names for this species. There is little or no difference in size between the sexes of Blackbelly garter snakes.
The major clinical relevance is in the case of traumatic amputation of the penis, failure to perform re-anastomosis of the dorsal arteries leads to skin loss. On the penis, it lies between the dorsal nerve and deep dorsal vein, the former being on its lateral side. It supplies the integument and fibrous sheath of the corpus cavernosum penis, sending branches through the sheath to anastomose with the deep artery of the penis.
The auditory dorsal stream includes the posterior superior temporal gyrus and sulcus, inferior parietal lobule and intra-parietal sulcus. Both pathways project in humans to the inferior frontal gyrus. The most established role of the auditory dorsal stream in primates is sound localization. In humans, the auditory dorsal stream in the left hemisphere is also responsible for speech repetition and articulation, phonological long-term encoding of word names, and verbal working memory.
The Dual-Stream model of language proposes that there are two streams by which the brain processes language information: the dorsal and ventral streams. The basis of this model is generally accepted, however the details of it are highly contentious. The dorsal pathway consists of multiple fiber tracts, one of which is the arcuate fasciculus. The dorsal pathway as a whole is implicated in sensory-to-motor mapping and processing complex syntax.
Dorsal view of a Smooth Butterfly Ray The ventral side is lightly colored while the dorsal side is variable in color. The ventral side is usually white but can contain a rusty or bronze coloration. The dorsal side can be grey, light green, brown, and also not uniform in color. They tend to use countershading to blend in with the bottom of their environments in order to hide from predators and to catch prey.
Skate's gill slits are located ventrally as well, but dorsal spiracles allow the skate to be partially buried in floor sediment and still complete respiratory exchange. Also located on the dorsal side of the skate are their two eyes which allow for predator awareness. In addition to their pectoral fins, skates have a first and second dorsal fin, caudal fin and paired pelvic fins. Distinct from their rhomboidal shape is a long fleshy slender tail.
The human arterial system originates from the aortic arches and from the dorsal aortae starting from week 4 of embryonic life. The first and second aortic arches regress and forms only the maxillary arteries and stapedial arteries respectively. The arterial system itself arises from aortic arches 3, 4 and 6 (aortic arch 5 completely regresses). The dorsal aortae, present on the dorsal side of the embryo, are initially present on both sides of the embryo.
A lateral line is absent with 7-9 dorsal rays, 9-11 anal rays, 12-14 pectoral rays and 6 pelvic rays. During the breeding season, males develop prickly contact organs on the side of the body between the dorsal and anal fins, and on the ends of the last few dorsal rays, anal fin, and outermost rays of the pectoral fin. The life expectancy of the golden topminnow is around 2 years.
The margin of the dorsal fin is blue and orange and the caudal fin is dull yellow with diagonally converging blue and rose lines. The males and females are similarly patterned but males are larger than females. There is another black spot on the spine near the origin of the dorsal fin. The dorsal fin has 9 spines and 11 soft rays; the anal fin has 3 spines and 12 soft rays.
The Sandhills chub is a minnow that has a large mouth in a terminal position with a small flap-like barbel located on the corners of their mouths. It has nine dorsal fin rays and either has a light black spot or does not at the base of the dorsal fin. Their dorsal fin is located behind the pelvic fins. It has a slightly lunate caudal fin giving it a more curved fin.
The spiny dorsal fin of Murray cod is moderate to low in height and is partially separated by a notch from the high, rounded soft dorsal fin. Soft dorsal, anal, and caudal (tail) fins are all large and rounded, and are dusky grey or black with distinct white edges. The large, rounded pectoral fins are usually similar in colour to the flanks. The pelvic fins are large, angular, and set forward of the pectoral fins.
The dorsal margin has a broad white band extending from the base to the tornus. There is also a silvery-white fascia with metallic reflection from the costal six-seventh to the dorsal margin, arched outward. The distal one-seventh is yellowish brown, with a central black dot, with an indistinct white dot at the costa and a white streak along the dorsal margin. The hindwings are yellowish white (especially at base) to brown.
The membranes of the dorsal fin has distinct indentations between its spines. There are 47-56 scales in the lateral line. The dorsal fin has 9 spines and 14-15 soft rays while the anal fin has 3 spines and 8-9 soft rays. The colour of the body is orange-red to reddish brown with many small bright blue spots which cover the head, body and the dorsal, anal and caudal fins.
The teeth of sharks over long are finely serrated. The fins (especially the dorsal, pectoral, and pelvics) of the sicklefin lemon shark are more falcate (sickle-shaped) than those of the otherwise very similar American lemon shark. The first dorsal fin is positioned closer to the pelvic than the pectoral fins. The second dorsal fin, nearly equal to the first in size, is located over or slightly forward of the anal fin.
The posterior angle of the maxillary extends beneath the anterior part of the eye, up to the middle of pupil. It possesses two rows of teeth in each jaw. The outer row of teeth inside the upper jaw is larger and more widely spaced, while the inner row is characteristically minute. The first dorsal fin is low, much in advance of the second dorsal fin but not reaching the second dorsal fin when depressed.
Nape with distinct black longitudinal stripes. Venter is dusky white. There is a yellow lateral band runs from snout to back of head. Presence of 53–58 para-vertebral tubercles, 17–19 longitudinal rows of mid-dorsal tubercles, small and closely spaced mid-dorsal tubercles.
Adults are on wing from June to September. Larva dark brown; the subdorsal area brownish-tannish peach; dorsal line thin, pale, edged with black; a row of dorsal V-shaped marks; an interrupted white lateral stripe. The larvae feed on Gramineae, Rumex and Taraxacum species.
The dorsal fin is moderate in length and spans 2-4 trunk rings and 3-5 tail rings. In females, the dorsal fin is usually banded. The caudal fin is present and rounded. The anal fin is greatly reduced, and the pelvic fins are absent.
Adults are light brown with two white bars with dark edging encircling the body. All fins are dusky brown. They have 10-11 dorsal spines, 2 anal spines, 15-17 dorsal soft rays and 13-14 anal soft rays. They reach a maximum length of .
The dorsal fin is dark while the pectoral, pelvic and anal fins are orange. During the breeding season the male becomes very colorful with steel blue upper parts in front of the dorsal fin, lustrous green upper parts behind and deep salmon- pink underparts.
The head is dark brown. The strong dark brown mandibles do not show long bristles outside the margins. Pronotum is covered by large black setae and short bristles. The dorsal side of abdomen has a series of circular markings and a characteristic dorsal median stripe.
Adult males measure about and females in snout–vent length. The dorsal colouration varies from grey to greyish-olive, olive, and green. There are usually large dark spots, a light mid-dorsal line, and two lines on dorso-lateral folds. The belly is white.
The moth flies in September and October. Larva greenish black, with a fulvous tinge; a dorsal series of dark medallions; dorsal line pale, interrupted, with black edges; spiracular line pale like the venter. The larvae feed internally on the flowers and leaves of oak trees.
However, the bars of banded archerfish extend to the dorsal fin whilst those of the smallscale archerfish do not; they stop below the dorsal fin, with another dark spot on the fin itself. The smallscale is also has a shorter snout than other archerfish.
A small fish, with maximum recorded size of about 4.8 cm. Small unbranched supraorbital, nasal and nuchal cirri. Lip margins smooth. Deep notch in dorsal fin between spiny and rayed sections, dorsal fin attached to base of caudal peduncle by a membrane, anal fin free.
They have 9 dorsal spines, 13 Dorsal soft rays, 3 anal spines, and 13 anal soft rays. Males are recognized by the grey head when seen in natural light. Body has a lined pattern until female stage. Males have orange spots along scale rows.
E. amplicauda has a chitinous exoskeleton, with overlapping, articulated dorsal plates, common to members of the order isopoda. This species exhibits strong sexual dimorphism. Females lack the dorsal tubercles present on the pereonites of the males. Males also have a larger pleotelson and uropods.
Hippotion griveaudi is a moth of the family Sphingidae. It is known from Madagascar. It is similar to Hippotion batschi, but distinguishable by the narrow white dorsal line on the abdomen. The upperside of the thorax and abdomen has a narrow white dorsal line.
Males can reach a length of 72 mm snout-to-vent.Species description given in . It has an olive to light green dorsal ground color, with a broad mid-dorsal stripe and a light stripe along its flanks. Its belly is cream to bright yellow.
The unpatterned hindwings are grey brown, somewhat darker at the margin. The thorax is furry and with some hair tufts, the proboscis is well developed. Larva bluish green with a few short dorsal hairs. There are slender dorsal white lines and a prominent lateral line.
Skin is dorsally smooth but bears granules, small conical tubers, and small warts. Dorsal coloration is dark or light brown, with our without spots. There is a brown X-mark in the supra-scapular area. Some specimens have a dark-brown mid-dorsal line.
The dorsal talonavicular ligament is a broad, thin band, which connects the neck of the talus to the dorsal surface of the navicular bone; it is covered by the Extensor tendons. The plantar calcaneonavicular supplies the place of a plantar ligament for this joint.
It can be identified by its distinctive dorsal coloration of many brown blotches on a tan background, and the relatively forward position of its first dorsal fin. The International Union for Conservation of Nature (IUCN) presently lacks the data to determine its conservation status.
On the dorsal fin the stripes are vertical. The outer edge of the caudal, dorsal and anal fins is white, while the pectoral fins are yellow. Sexing is difficult, but males do have a small genital papilla and females are generally plumper than the male.
The dorsal ground color is variable and ranges from gray through buff, pale yellow, orange-red to brown. In most specimens, the neck and arms are darker than the body and legs. There is a broad dark-brown mid-dorsal stripe with well-defined margins.
Adult males measure and adult females in snout–vent length. Dorsal skin is shagreened and has scattered small warts, but ventral skin smooth. The tympanum is prominent and vertically oval. The snout is subacuminate to acuminate in dorsal view, but round in vertical profile.
Adults measure in snout–urostyle length. Skin is warty. The dorsal ground colour is variable and ranges from pale fawn to very dark brown. Some individuals have a light mid-dorsal line and most have a dark hour-glass mark commencing between the eyes.
Males grow to and females to in snout–vent length. Tympanum is not clearly visible. Dorsal colouration is highly variable: yellow, pinkish, brownish, greyish, or dark green. There are always distinct darker spots on the dorsal surface, in some individuals extending into dark crossbars.
Coronal image of mouse main olfactory bulb cell nuclei. Blue – Glomerular layer; Red – External Plexiform and Mitral cell layer; Green – Internal Plexiform and Granule cell layer. Top of image is dorsal aspect, right of image is lateral aspect. Scale, ventral to dorsal, is approximately 2mm.
Haplocanthosaurus is distinguished by dorsal vertebra lacking cranial centrodiapophyseal laminae. Also, it is distinguished by elongate intrapostzygapophyseal laminae, dorsoventrally directed dorsal transverse processes that approach the height of the neural spines, and the distal end of the scapular blade being dorsally and ventrally expanded.
Fountainea nobilis is a quite rare "leaf butterfly". The dorsal sides of the upperwings are reddish with dark brown edges. In the females the dorsal sides are usually brown, with clearer edges. On the hindwings there are a few small white and black eyespots.
Adults can grow up to at maximum length. They have 12 dorsal spines, 14 to 15 dorsal soft rays, 2 anal spines, and 15 to 16 anal soft rays on their fins. Coloration of this fish can change a lot. It depends on its behavior.
Adults may attain a total length of , which includes a tail long. Dorsally, Leptophis ahaetulla is bright green, golden, or bronzy. The keels of the dorsal scales are black or dark brown. The head shields and the dorsal scales may be edged with black.
Adults can grow up to . Its fins have 13 dorsal spines, 12 to 14 dorsal soft rays, 2 anal spines, and 13 to 14 anal soft rays. Like most species of damselfish in the genus Neoglyphidodon, adults and juveniles have different colouration. Adults are black.
The Tentacled dragonet reaches a maximum length of TL. The fish has 4 dorsal spines, 8 dorsal soft rays, no anal spines, 7 anal soft rays. It is commonly identified by "moderately long tentacle behind the eye and numerous small leafy appendages on the body".
Males have a greenish-turquoise body background coloration, whereas females are seemingly more green. There is a black or rarely white postocular stripe. Body has dorsal blotches that are black with unfilled dorsal scales, giving raise so degree of net-like pattern. Tail is moderate.
Pacific Barracuda have a distinct feature of a forked tailed fin and widely separated dorsal fins.
The midbody consists of 19 rows of scales. The dorsal scales are strongly keeled and rough.
The name "tripletail" is given because of the fish's three rounded fins: dorsal, caudal, and anal.
Head black, body yellowish orange to brownish with a red dorsal and single lateral broken lines.
The posterior branches of the lumbar nerves branch from the dorsal rami of the lumbar nerves.
In most other bony fishes the swim bladder is supplied with blood by the dorsal aorta.
It has 10–13 spines in its dorsal fin and 12–15 in its anal fin.
It has smooth dorsal scales, a small head, and the pupil of the eye is round.
The facial artery anastomoses with (among others) the dorsal nasal artery of the internal carotid artery.
Finally Fallotaspidella is closest to the trilobites with dorsal cephalic sutures, such as Bigotina and Lemdadella.
Frog is easily recognizable with orange colored circle around iris. Usually dorsal surface is creamy colored.
There was a separate dorsal gunner's position, fitted with a gun ring, on the fuselage proper.
The specific name refers to the contrasting ventral and dorsal colors. No subspecies are currently recognized.
There is a dark spot at origin part of dorsal fin. It feeds on small planktons.
The dorsal surfaces have dense brown vermiculation as well as a X-pattern behind the head.
Gosner stage 31 tadpole of Nidirana leishanensis. (A) Dorsal view. (B) Lateral view. (C) Ventral view.
Males measure in snout–vent length. Texture of dorsal skin of males is shagreen with spinules.
The dorsal process ends with a pair of curved indentations that define a small central tooth.
The specific epithet scutatus is Latin for shield, referring to the large dorsal and ventral scutes.
The chief differences between the two lie in the shape and size of the dorsal cirri.
The dorsal spine on the tail is absent; therefore, no stinging can occur to harm humans.
The material includes cervical, dorsal, sacral and caudal vertebrae, the forelimb girdle, and the partial hindlimb.
Animals often exhibit ulcerated wounds, subcutaneous cysts and tumours mostly in the dorsal and posterior regions.
A stout spine precedes the dorsal fin, and the forked caudal fin has equal sized lobes.
Cerata are dorsal and lateral outgrowths on the upper surfaces of the body of these nudibranchs.
In females, the extreme dorsal edge is blackish fuscous. The hindwings are whitish to pale buff.
The dorsal scales are smooth, with apical pits, and are arranged in 19 rows at midbody.
Mesothorax also has dark patches with last abdominal segment. With development, central dorsal line become yellowish.
In contrast to the cervical vertebral centra, the dorsal centrum is shorter and more mildly opisthocoelous.
The royal threadfin is a medium-sized threadfin species reaching a maximum total length of , although a more normal length is . It has two separate dorsal fins, the first dorsal fin has 8 spines and the second dorsal fin has a single spine and 14 or 15 soft rays. The anal fin contains 3 spines and 24 to 30 soft rays, with a base which is longer than that of the second dorsal-fin. The pectoral fin has 14 to 16 unbranched rays and is 30% to 42% of the fish's standard length with its tip extending to or just short of the centre of the base of the anal fin.
Initially the foregut, midgut, and hindgut are in extensive contact with the mesenchyme of the posterior abdominal wall. By the fifth week, the connecting tissue bridge has narrowed, and the caudal part of the foregut, the midgut, and a major part of the hindgut are suspended from the abdominal wall by the dorsal mesentery, which extends from the lower end of the esophagus to the cloacal region of the hindgut. In the region of the stomach, it forms the dorsal mesogastrium or greater omentum. In the region of the duodenum, it forms the dorsal mesoduodenum; and in the region of the colon, it forms the dorsal mesocolon.
Flies in the family Bibionidae display a particularly notable dimorphism, with males possessing large dorsal eyes that are absent in females.The sexual dimorphism in Bibionidae eyes is prominent, with the large dorsal eyes of the male (left) entirely absent in the female (right) Female eyes and the ventral eyes of males are very similar, however, suggesting that the male dorsal eyes serve some extra sex specific function. Research on visually guided behavior in flies suggests that male dorsal eyes may be specialized for the detection and capture of females, for which there is a great deal of competition among males.Land, F.M., Collett, T.S. 1975.
This behavior usually involves displaying more dull colors when attempting to camouflage itself, and flashing brighter colors in the presence of a predator. Likely the most unique aspect of this fish is the patterning of the dorsal fin itself. The fourth dorsal spine is nearly twice the length of the others, and there exists a distinct black mark appearing somewhere along the membrane between the first and third dorsal spines, with the combination of the two traits resulting in the dorsal fin having the appearance of an even smaller fish. I. signifer utilizes this morphological feature in a coordinated luring mechanism not seen in any other members of the Scorpaenidae family.
The arcuate artery of the foot gives off the second, third, and fourth dorsal metatarsal arteries, which run forward upon the corresponding Interossei dorsales; in the clefts between the toes, each divides into two dorsal digital branches for the adjoining toes. At the proximal parts of the interosseous spaces these vessels receive the posterior perforating branches from the plantar arch, and at the distal parts of the spaces they are joined by the anterior perforating branches, from the plantar metatarsal arteries. The fourth dorsal metatarsal artery gives off a branch which supplies the lateral side of the fifth toe. The first dorsal metatarsal artery runs forward on the first Interosseous dorsalis.
This would make the axes of symmetry consistent with that of other bilaterian phyla and appears to be consistent with the embryological development, in which the body axis folds to bring the shells from the dorsal surface to their mature position. Further support has been identified from the gene expression pattern during development, but on balance, developmental evidence speaks against the BFH. More recent developmental studies have cast doubt on the BFH. Most significantly, the dorsal and ventral valves have significantly different origins; the dorsal (branchial) valve is secreted by dorsal epithelia, whereas the ventral (pedicle) valve corresponds to the cuticle of the pedicle, which becomes mineralized during development.
The first dorsal fin originates to the front of the pelvic fin and the second dorsal fin is located in front of the anal fin's insertion. They typically reach a maximum size of 68 cm in total length, but they average between 30 and 60 cm.
Five subspecies of Dorcopsis muelleri are recognised. The dorsal colour is dull brown, chocolate brown, reddish brown or fawn and the underparts are whitish, creamy-yellow or greyish. The arms are sometimes paler than the dorsal surface and the tip of the tail is devoid of hair.
416 p. Its body is compressed laterally, the first rays of its dorsal fin stretch in a long white filament. The background color of its body is white with two large black diagonal bands. Beyond the second black stripe, the dorsal and the caudal fins are yellow.
The dorsal scapular nerve is at risk for intraoperative injury when detaching the rhomboid and levator scapulae insertions due to its proximity to the medial scapular border. This is of particular concern because the dorsal scapular nerve innervates all three muscles transferred in the Eden-Lange procedure.
The stone bream is often blue and silver in color. Each stone bream has anywhere from 6-8 dorsal fins and 20-25 dorsal soft rays. They are also equipped with 3 anal spines and around 20-26 anal soft rays. They have very small mouths.
It generally has either four or five dorsal spines but may have as many as seven.Blouw, D. M., & Hagen, D. W. (1981). Ecology of the fourspine stickleback, Apeltes quadracus, with respect to a polymorphism for dorsal spine number. Canadian Journal of Zoologly, 59(9), 1677-1692.
Afferent nerve fibers leave the sensory neuron from the dorsal root ganglia of the spinal cord, and motor commands carried by the efferent fibers leave the cord at the ventral roots. The dorsal and some of the ventral fibers join as spinal nerves or mixed nerves.
It has 15 to 19 dorsal soft rays and 17 to 26 anal dorsal soft rays. It is a filter feeder and feeds on planktons. Widely used as a food fish, it can make in to fish balls and can eat both as fresh and dried forms.
The flower is cream- coloured to pink, with red lines. The dorsal sepal is long, about wide and tapers to a thick glandular tip long. The lateral sepals are a similar to the dorsal sepal but almost twice as wide. The petals are long and wide.
The dorsal scales are small, pointed, and keeled, as the common name implies. The lateral scales are similar but smaller. The ventral scales, which are flat and smooth, are 3-4 times larger than the dorsal scales. Adults may attain snout to vent length (SVL), total length.
Mature females or young males only show the two black spots on the dorsal fin. Mature males display only the first black spot on the front of the dorsal fin, a lighter-colored spot just behind the eye and irregular greenish to pinkish lines on the face.
The dorsal fin contains 11 spines and 15-17 soft rays while the anal fin has 3 spines and 8 soft rays. The membranes between the dorsal fin spines are slightly incised. The caudal fin is rounded. There are 53-63 scales in the lateral line.
Adults of Osphronemus laticlavius can grow up to . These fishes have 10 dorsal spines, 13–14 dorsal soft rays, 11–12 anal spines and 16 – 18 anal soft rays.Fishbase Body is massive, laterally compressed, with an almost oval shape. The head is snub-nosed, with prominent jaw.
Chromis iomelas is split in color, being solid black from the middle of the dorsal fin to the nose, and solid white from the middle of the dorsal fin to the end of the caudal fin. It grows to a size of 8 cm in length.
Adults can grow up to at maximum length. Normally, they would grow up to . The largest recorded specimen weighed had a weight of up to . Abudefduf saxatilis has 13 dorsal spines, 12 to 13 dorsal soft rays, 2 anal spines, and 10 to 12 anal soft rays.
Chamanthedon leucocera is a moth of the family Sesiidae. It is known from Kenya and Malawi. The head and thorax are black brown glossed with bronze. The abdomen is orange with a dorsal series of black-brown patches forming dorsal bands on second and fourth segments.
A large black spot is usually present on the shoulder, with smaller dark spots on the operculum and pectoral fin axil. The soft dorsal, anal, and caudal fins are dusky, with the spinous dorsal fin black. The pectoral and pelvic fins are hyaline to white in colour.
The Cape kurper can grow to 25 cm in length and weigh up to 200g. It has a mainly yellow to golden brown colouration with dark markings on the dorsal part of the body whichextend onto the dorsal and anal fins. Males are more colourful than females.
Segments 3 to 8 have the borders narrowly black and the mid-dorsal carina broadly so. This mid-dorsal black stripe dilate at the apical ends of 3 to 6. Segment 9 has only a narrow short red stripe on each side. Segment 10 is entirely black.
The species distinguish from its congeners in having 5-7 regular broad bars, dorsal side of pectoral fin with small tubercles, very low or no adipose crest on dorsal and ventral side of caudal peduncle, intestine without loop behind the stomach, and several morphometric and meristic characters.
The superficial dorsal sacrococcygeal ligament (ligamentum sacrococcygeum posterius superficiale) originates on the free margin of the sacral hiatus to attach on the dorsal surface of the coccyx. It closes the posterior aspect of the most distal part of the sacral canal and corresponds to the ligamenta flava.
Adult males measure and adult females in snout–vent length. The snout is rounded to truncate in dorsal view, and rounded, slightly protruding in lateral profile. The tympanum is large, with its dorsal edge partly concealed by the supra-tympanic fold. The eyes are large and bulging.
Identification of this species is very easy due to the pattern of harness-like markings that cross the eyes, run along the back to the first dorsal fin, then cross the side of the body, in addition to the spine in front of both dorsal fins.
1881, pp. 215-226. Dorsal scales occur in 21 rows, and ventrals in 215, nearly twice as large as contiguous dorsal scales; the anal scale is divided; it has 9 subcaudals.Boulenger, G.A. 1893. Catalogue of the Snakes in the British Museum (Natural History), Volume I. p. 137.
The tragus is white and short, at long. Their dorsal fur is ashy-gray, with some hairs tipped in a reddish-orange tint of brown. Other dorsal hairs are tipped in a charcoal black color. Their heads, backs, uropatagia, and feet have silver-gold guard hairs.
Both sexes have 24 vertebrae, of which 11 are precaudal and 13 are caudal. . The marlin has two dorsal fins and two anal fins. The fins are supported by bony spines known as rays. Its first dorsal fin has 39 to 43 rays from front to back.
They also have relatively larger dorsal fins. The adults have a white spine on the caudal peduncle. The large, sail-like dorsal fin has 4 or 5 spines and 23 to 25 soft rays. The anal fin has 3 spines and 19 to 21 soft rays.
Larva purple-black with a few dorsal hairs. Head and a lateral line from 4th to 10th somites are reddish. A dorsal series of transverse white streaks. It is a minor pest, where the larvae feed on the young leaves of Crotalaria species, including Crotalaria juncea.
Ventral view ;Adult The wingspan is 29–48 mm. The forewing has two yellow-rimmed black eyespots on both sides, dorsal and ventral. The hindwing has two spots on the dorsal side but have smaller spots on the ventral. The other all color is light brown.
The sepals have thin, club- like glandular tips long. The dorsal sepal curves forward and is long. The lateral sepals are a similar size to the dorsal sepal and turn stiffly upwards. The petals are long, sickle-shaped, taper to a thin point and turn upwards.
B. slowinskii has a color pattern of alternating wide black rings and narrow white rings on its body and tail. The dorsal scales are arranged in 15 rows at midbody. The dorsal scales in the vertebral row are enlarged and hexagonal. The subcaudal scales are divided.
The dorsal fin originates just over or behind where the pelvic fin originates. When depressed, the first dorsal fin extends beyond the last ray. The tip of the pelvic fin can reach beyond the origin of the pelvic fin. There are eight rays in the anal fin.
The redlip shiner is characterized by bright red lips with a similar coloration in the dorsal, anal, and caudal fins. The body is slender and compressed, with the dorsal fin origin slightly behind pelvic fin origin.Burr, B. and Page, L. (1991). Peterson Field Guides: Freshwater Fishes.
Abdomen is yellowish brown on the sides with metallic-green dorsal stripes up to segment 8. Segment 9 has a dark dorsal mark on basal half. The remaining half of segment 9, segment 10 and the anal appendages are pale yellow. Female is similar to the male.
The dorsal scales are arranged in 22-26 rows. There are more than 400 dorsal scales in the vertebral series. The snout is strongly hooked, with the nostrils located below the sharp cutting edge. The rostral is large, but not extending as far as the eyes.
Male Bdellozonium cerviculatum from the western United States viewed from below and above Polyzoniidans have a somewhat domed dorsal surface with a flat ventral side. Their heads are small and cone-like, with few ocelli. They lack a dorsal groove and paranota (lateral extensions of each segment).
Sea chubs are easily recognized by distinct morphological characteristics such as their ovate-shaped bodies, small mouths, and weakly- forked strong caudal fin. A key characteristic also being a spinous dorsal fin with low spines followed by a higher evenly curved or falcate soft dorsal fin.
The caudal fin and the second dorsal fin have fine brownish bars. The mature males develop a depressed head and enlarged jaws. The first spine in the first dorsal fin is the longest and normally develops into a filament. It attains maximum size of in standard length.
Small discrete black spots populate the anterior dorsal fin membrane, becoming more numerous toward the anterior half of the fin. The soft dorsal fin has a continuous grey band, running parallel to and close to the anterior edge of each ray. The membrane of the anal fin has similar black dots to the dorsal, but to a lesser extent. The pectoral fin and ventral fins are golden to hyaline while the caudal fin is hyaline with black dots.
Its colour fades to silvery white on the posterior portion of the belly. It has two dorsal fins, the first of which has a tiny spine at the front with the second and third spines being much longer. The anal fin lies directly below the posterior dorsal fin. The colour of the fins is pinkish-orange and larger fish have a line of brown spots on the membranes of second dorsal fin and the anal fin.
The queen butterfly (Danaus gilippus) is a North and South American butterfly in the family Nymphalidae with a wingspan of . It is orange or brown with black wing borders and small white forewing spots on its dorsal wing surface, and reddish ventral wing surface fairly similar to the dorsal surface. The ventral hindwings have black veins and small white spots in a black border. The male has a black androconial scent patch on its dorsal hindwings.
The first dorsal fin is fairly large and triangular, with a blunt apex sloping down to a sinuous trailing margin; its origin lies over the free rear tips of the pectoral fins. The second dorsal fin is small and low, and originates over the middle of the anal fin base. There is no ridge between the dorsal fins. The caudal peduncle bears a deep, crescent- shaped pit at the origin of the upper caudal fin lobe.
Twinning assays identified Wnt proteins as molecules from the Nieuwkoop center that could specify the dorsal/ventral axis. In twinning assays, molecules are injected into the ventral blastomere of a four-cell stage embryo. If the molecules specify the dorsal axis, dorsal structures will be formed on the ventral side. Wnt proteins were not necessary to specify the axis, but examination of other proteins in the Wnt pathway led to the discovery that β-catenin was necessary.
The second dorsal vertebra SGO-PV-961b is antero-posteriorly compressed with the neural arch partially preserved. These dorsal vertebrae differ from other titanosaurs such as Gondwanatitan, Saltasaurus, Trigonosaurus and Uberabatitan, due to the strongly concave ventral margin of the centrum. By taking into account all the characteristics of the dorsal vertebrae, Atacamatitan differs from other titanosaurs by having pleurocoels rounded and less elongated not pointing posteriorly. Although some caudal vertebrae were discovered, only two are well preserved.
The belly is creamy or white and wavy lines may appear slightly above the white belly on the sides. The dorsal, caudal and anal fins are dark olive green to grayish black. Pelvic fins may have a cream colored leading edge with dark spots. The shoal bass has scales on the base portion of the soft-rayed dorsal fins, clearly connected first and second dorsal fins, and an upper jaw bone that does not extend beyond the eyes.
The haptor includes sclerotized elements, namely a ventral bar, two lateral (dorsal) bars, two ventral hooks and two dorsal hooks, and fourteen hooklets. As in most diplectanids, the haptor bears special, characteristic, structures called squamodiscs. The squamodiscs (one ventral and one dorsal) of species of Pseudorhabdosynochus are made up of numerous rodlets aligned as concentric rows. All species of the genus have two squamodiscs except Pseudorhabdosynochus sinediscus Neifar & Euzet, 2007 in which these organs are completely lacking.
Both the dorsal and anal fins are relatively short; the dorsal fin has 20 to 26 soft rays, the anal fin has 20 to 25 and the pectoral fins have 20 to 24 soft rays. The dorsal colouring is dark grey to black and the ventral surface is rather paler. Apart from the tips of the outer rays of the caudal fin, which are grey, the fins are black in adults, but transparent or pale grey in juveniles.
Differentiating between the male and female three spot gourami is by the dorsal fin. In the male, the dorsal fin is long and pointed and the anal fin is pointed, while the female's are shorter and rounded. However, some females may have a dorsal fin as long as the male's. When ready to breed, the male builds a bubble nest and then begins to entice the female by swimming back and forth, flaring his fins and raising his tail.
Both dorsal fins are immediately preceded by stout, grooved spines, with the second much longer than the first. The small first dorsal fin has a rounded apex and a nearly straight trailing margin, with its origin lying behind the pectoral fins. The second dorsal fin is rather angular and has about double the area of the first, with its origin located opposite the midpoint of the pelvic fin bases. The pectoral fins are small and rounded.
The outer pair of mandibular barbels is longer than the inner pair, and is about the length of the head. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. caudalis, the spine of the dorsal fin is short, about the length of the head, smooth in the front and serrated on the back. The remaining portion of the dorsal fin is made up of seven branching rays.
Goatfishes are characterized by a pair of chin barbels (or "goatee"), which contain chemosensory organs and are used to probe the sand or holes in the reef for food. Their bodies are deep and elongated, with forked tails and widely separated dorsal fins. The first dorsal fin has 6-8 spines; the second dorsal has one spine and 8-9 soft rays, shorter than anal fin. Spines in anal fin 1 or 2, with 5-8 soft rays.
The tail and its characteristic filaments Abalistes filamentosus has a total of three dorsal spines, 25-27 dorsal soft rays, 22-25 anal soft rays, and 14-15 pectoral rays. The upper and lower rays of the caudal fin are formed from filaments. The spinal dorsal fin is dark brown, and the body has now yellow or light blue spots. The dark brown color gradually becomes white ventrally, and its cheek is brown with a tint of green.
The first dorsal fin has a narrowed rounded apex and originates over the middle of the pelvic fin bases. The almost triangular second dorsal fin is much smaller and lower than both the first dorsal and the anal fins, originating behind the anal fin origin. The pelvic fins are small, with short and elongated claspers in males. The caudal fin has a distinct lower lobe and a strong ventral notch near the tip of the upper lobe.
The pectoral fins are rather long and broad. The first dorsal fin originates over the rear of the pelvic fin bases; the second dorsal fin is slightly larger and originates over the rear of the anal fin base. The pelvic and anal fins are long and low, and larger than the dorsal fins. The free rear tips of the pelvic fins may be fused together to some degree, but never completely; males have slender, pointed claspers.
There are 11 spines and 13-15 soft rays in the dorsal fin while the anal fin contains 3 spines and 9 soft rays. The membarnes between the dorsal fin spines have deep notches. The caudal fin has a rear margin which is convex in juveniles of standard lengths less than and is straight or concave in adults. The overall colour is dark brown with a black margin to the spiny part of the dorsal fin.
The two dorsal fins have rounded apexes and are placed close together; the base of each fin measures about two-thirds its height. The rear of the first dorsal fin base is located behind the rear of the pelvic fin bases. The second dorsal fin is only slightly smaller than the first. The short, robust tail has skin folds running along either side, and terminates in a large caudal fin shaped like a triangle with blunt corners.
External granular papilla are present. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. dhonti, the spine of the dorsal fin is long, about as long as the head, is almost completely straight, is smooth on the front and serrated on the back, and ends with short, dark filaments. The remaining portion of the dorsal fin is made up of seven dark branching rays.
The outer pair of mandibular barbels has long, simple branches, and the inner pair has short and thick branches with secondary branches. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. fuelleborni, the spine of the dorsal fin is slightly shorter than the head, smooth in the front and serrated on the back. The remaining portion of the dorsal fin is made up of seven branching rays.
The body of A. omanensis is dark brown and with two white bars and distinctive forked caudal fin, which is blackish in juveniles fading to white in adults. The midbody bar is narrow and does not extend onto the dorsal fin while the headbar is also narrow and usually constricted across the nape They have 10 dorsal spines, 2 anal spines, 10-17 dorsal soft rays and 14-15 anal soft rays. They reach a maximum length of .
M. nheco is like other doradids. It has three pairs of barbels (one pair maxillary, two pairs mental), strong dorsal and pectoral fin spines. M. nheco is differentiated from all other doradids by having its scutes with thorns directed ventrally in adults, and from all doradids except Physopyxis cristata by having an incomplete lateral line. It has a smooth dorsal fin spine, as opposed to a serrated one; the only other genus with smooth dorsal fin spines is Anadoras.
External papilla are present on the head, but not the body. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. irsacae, the spine of the dorsal fin is short, about as long as the head, slightly curved, rough on the front and serrated on the back, and ends with short, dark filament. The remaining portion of the dorsal fin is made up of seven branching rays.
There are 42-50 tooth rows in the upper jaw and 42-48 tooth rows in the lower jaw. Each tooth has a single narrow, smooth-edged cusp at the center, flanked by a pair of much smaller cusplets. The first dorsal fin is positioned well back on the body, closer to the pelvic than the pectoral fins. The second dorsal and anal fins are large, about half to three-quarters as high as the first dorsal fin.
The mandibular barbels have long, slender branches, and the outer pair is about as long as the inner pair. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. woosnami, the spine of the dorsal fin is about the length of the head, slightly curved, smooth in the front and serrated on the back. The remaining portion of the dorsal fin is made up of seven branching rays.
Air is taken in through spiracles along the sides of the abdomen and thorax supplying the trachea with oxygen as it goes through the lepidopteran's respiratory system. There are three different tracheae supplying oxygen diffusing oxygen throughout the species body: The dorsal, ventral, and visceral. The dorsal tracheae supply oxygen to the dorsal musculature and vessels, while the ventral tracheae supply the ventral musculature and nerve cord, and the visceral tracheae supply the guts, fat bodies, and gonads.
The coachwhip trevally is a dusky olive green colour above, fading to a silvery white or yellow below with small blue to black blotches present on the dorsal line between the bases of the second dorsal fin rays. The upper caudal and soft dorsal fins are dusky blue, while the anal fin is yellow having white lobe tips. The pelvic and pectoral fins are yellow. There is a diffuse dark opercular blotch, which may be absent altogether.
The anal fin has 26 rays and the pectoral spine is similar in size to the dorsal spine and also shows serrations. It has a silver, curved underside and a dark brown back. Its dorsal, pectoral and pelvic fins are dark gray and the first soft ray is extended into a filament. Its dorsal, adipose, pectoral, and caudal fins are a dark grey to black coloring, with its anal fin and pelvic fins a white to grey coloring.
In the lateral regions of the embryo, low nuclear concentrations of Dorsal lead to the expression of rhomboid which identifies future neuroectoderm. More dorsally, active Dpp signaling represses rhomboid thus confining it to the lateral blastoderm nuclei. At the dorsal side of the embryo, blastoderm nuclei where this is little or no nuclear dorsal protein express zerknüllt, tolloid, and decapentaplegic (Dpp). This leads to the specification of non-neural ectoderm and later in the blastula stage to anmioserosa.
On the body, the dorsal scales number 45-55 at midbody, the ventral scales 270-300, the anal scale is single and there are 60-90 paired subcaudal scales. The color pattern consists of a uniform, iridescent dark blackish brown dorsal color. The belly is a dull to bright yellow that includes the first few rows of dorsal scales. The throat is cream colored, while the upper labials are light gray-brown with dark brown or black spots.
The human embryo begins life with two ducts in the pancreas, the ventral duct and the dorsal duct. Normally, the two ducts will fuse together to form one main pancreatic duct; this occurs in more than 90% of embryos. In approximately 10% of embryos the ventral and dorsal ducts fail to fuse together, resulting in pancreas divisum. In utero, the majority of the pancreas is drained by the dorsal duct which opens up into the minor duodenal papilla.
A low median ridge from tip of snout to nostrils, sometimes bordered by lateral depression, a slight elevation anterior to orbits, supraoccipital slightly convex to flat. Dorsal margin gently flattened from base of first branched dorsal-fin ray to base of adipose fin between very slight ridges formed with lateral plates of dorsal series. First lateral plates of mid-ventral series forming low lateral ridge. Caudal peduncle roughly ovoid in cross section, flattened ventrally, and more compressed posteriorly.
Unlike the anterior dorsal, the posterior dorsal is only very slightly opisthocoelous. A tall and narrow hyposphene (thin vertical ridge below the anterior processes of the arch, providing additional vertebral articulation) is present and well expanded off the arch. A single dorsal neural spine is also preserved. It is flattened and not tall, with a narrowed tip, and the only noticeable laminae present are the spinopostzygapophyseal laminae running down the rear corners of the spine to the postzygapophyses.
These dark markings are also present on females hovering above their nests and may disappear within a few seconds once they ascend upwards in the water column, away from their nest (Clark et al., 2014). In this fish, the dorsal and anal fins are curved on the back. The dorsal fin of this species has from 23 to 27 rays. The first dorsal fin’s rays are spinous, with the first two rays more like sharp thorns.
The species within Belonoperca are elongated, predatory fish that produce the toxin grammistin in the mucus on their skin.The two species in the genus have 9 spines in their dorsal fin, although B, chabanaudi may have 10, and both have 10 dorsal fin rays. Other members of the tribe Diploprionini have more dorsal fin rays than the species of Belonoperca. They also differ from related fishes in the arrangement of the spines and rays in the anal fin.
Lesions to the ventral hippocampus have no effect on spatial memory, while the dorsal hippocampus is required for retrieval, processing short-term memory and transferring memory from the short term to longer delay periods. Infusion of amphetamine into the dorsal hippocampus has also been shown to enhance memory for spatial locations learned previously. These findings indicate that there is a functional dissociation between the dorsal and ventral hippocampus. Hemispheric differences within the hippocampus are also observed.
The fish is colored dark black in dorsal area and blackish brown in side, the under side is silvery white and the dorsal fin is pale orange red in color. Fins (pectoral, pelvic, anal) are whitish-yellow in color except the caudal fin which is dirty yellow in color. There are some long black spots in the dorsal fin rays and in the caudal blotch there is a small patch of bluish black dots in a scale.
Similar to other member of genus Galaxias. Mouth is set low on the relatively long snout and dorsal, pelvic and anal fins are well back along the body. Caudal peduncle short and shallow with the tail fin long at about 20% longer than the caudal peduncle. Dorsal and anal fins short with the anal fin set well back at about 85% from the front of the dorsal fin, the furthest back of all members of the species complex.
Dorsal spines (total): 0; Dorsal soft rays (total): 14-19; Anal spines: 0; Anal soft rays: 19 - 26; Vertebrae: 43 - 47. Snout quite sharply pointed; maxilla moderate, tip sharply pointed, reaching to or almost to hind border of pre-operculum, projecting well beyond tip of second supra-maxilla; tip of lower jaw below nostril. Gill rakers slender, long; absent on hind face of third epibranchial. Anal fin origin under about base of last dorsal fin ray.
Baton Rouge, LA: Claitors Publishing Division. The dorsal and anal fins are moderately high, about equally elevated, and slightly rounded at the tips. The margin of the dorsal fin is mostly straight, and the anal fin in emarginate. In both fins, the anterior rays are somewhat longer than the posterior rays when depressed. The dorsal fin has 8 (7-8) rays and its origin is slightly anterior to the pelvic fin, which has 8 (7-8) rays.
This species has a moderately elongate and laterally compressed body. The lower jaw has a short sideways-projecting spine on either side near the tip. The dorsal fin has 15 to 21 soft rays and the anal fin has 14 to 17. The small pelvic fins are at the midpoint of the body, the origin of the dorsal fin is slightly behind this and the origin of the anal fin is below the centre of the dorsal fin.
The describing authors determined some distinguishing characteristics. The last dorsal vertebra has a pleurocoel, or pneumatic cavity, that is bounded by an enlarged posterior ridge between the diapophysis and the vertebral body, by the posterior ridge between the parapophysis and the vertebral body; and by the vertebral body itself. The rear dorsal vertebra has a well-developed horizontal ridge between the prezygapophysis and the parapophysis. The last dorsal vertebra has a parapophysis that protrudes more laterally than the diapophysis.
An official inquest was held to determine Mirza's cause of death, including an autopsy. The coroner concluded Mirza died as a result of CFS. Considered and eliminated were sleep apnea, drug use, and all other possible causes of death that could have been consistent with the autopsy results. A neuropathologist testified at the inquest that four out of five of Mirza's dorsal root ganglia showed abnormalities and evidence of dorsal root ganglionitis, inflammation of the dorsal root ganglion.
There are five eye pairs. Sulcus is present as a narrow and distinct groove running from the crypt of the median dorsal jaw to the dorsal rim of the anterior sucker. Dorsal surface color is mainly grass green, there are two orange paramedian stripes which are thin and fragmented and two orange paramarginal stripes which are broad and encompassing black segmentally arranged quadrangular or rounded spots. Lateral margins of body with yellow stripes encompassing black, segmentally arranged rounded spots.
The pancreas arises as two separate bodies, the dorsal pancreas and the ventral pancreas. The dorsal pancreas appears first, at around day 26, opposite the developing hepatic duct, and grows into the dorsal mesentery. The ventral pancreas develops at the junction of the hepatic duct and the rest of the foregut. During development, differential growth of the wall of the stomach causes it to rotate to the left, and the liver and stomach undergo a lot of growth.
They have jaws armed with bands of fine, pointed teeth. The cheek and operculum have lines of papillae which are also found around the preopercular margin and on each side of snout to above the eye. There are 3-5 large pores on the preopercular margin. It has two dorsal fins, the first, anterior dorsal fin, is rounded and has notches between its six spines and the second, posterior dorsal fin, is taller and slightly longer.
The dorsal striatum is composed of the caudate nucleus and the putamen. Staining can differentiate the striatum into two distinct compartments of striosomes or patches, and a surrounding matrix; this is particularly evident on the components of acetylcholinesterase and calbindin. More studies have been carried out on the dorsal striatum but the compartments have also been identified in the ventral striatum. In the dorsal striatum striosomes make up 10-15 per cent of the striatal volume.
Anatomical studies had shown that different sectors of the entorhinal cortex project to different levels of the hippocampus: the dorsal end of the EC projects to the dorsal hippocampus, the ventral end to the ventral hippocampus. This was relevant because several studies had shown that place cells in the dorsal hippocampus have considerably sharper place fields than cells from more ventral levels. Every study of entorhinal spatial activity prior to 2004, however, had made use of electrodes implanted near the ventral end of the EC. Accordingly, together with Marianne Fyhn, Sturla Molden and Menno Witter, the Mosers set out to examine spatial firing from the different dorsal-to-ventral levels of the entorhinal cortex. They found that in the dorsal part of medial entorhinal cortex (MEC), cells had sharply defined place fields like in the hippocampus but the cells fired at multiple locations.
A. rozei has four precloacal pores. The dorsal surface of the tail is covered by strong tubercles.
Antennae minutely ciliated in male. An acute frontal tuft present. Thorax smoothly scaled. Abdomen with dorsal tufts.
The epitheton palmatus is Latin for "webbed" and refers to the webbed palpal tibia in dorsal view.
Black marginal bands may occur on the soft dorsal and caudal fins (the end of the fin).
The second dorsal spine is joined to the third by a flap of skin, making a crest.
In human anatomy, the dorsal interossei of the foot are four muscles situated between the metatarsal bones.
However, the reassignment of the dorsal vertebrae on which the diagnosis was based would render it invalid.
Legs and tow dorsal prominences on 11th segment dark. Larva feeds on Caesalpinia, Canthium, Cissampelos, Macadamia plants.
Courtship includes the erection of the dorsal fin and the lowering of the pelvic and anal fins.
The connection between the substantia nigra pars compacta and the dorsal striatum is mediated via dopaminergic axons.
The parapodia are uniramous or biramous, with dorsal cirri upon all segments. The ventral bristles are compound.
In the brain, the dorsal striatum may be associated with physical (motor) but not affective withdrawal sign.
The dorsal region may contain motion-sensitive neurons, and ventral areas may be specialised for object recognition.
Its ventral region is white. Dorsal, caudal, anal and ventral fins are white with black transverse bands.
The juveniles use the elongated, detached front portion of their dorsal fin to impersonate drifting dead leaves.
Additionally, population responses of binocular neurons have been found in human ventral and dorsal pathways using fMRI.
Dorsal coloration is uniformly ochre, olive, brownish, or silvery. A thin, light vertebral line may be present.
Males measure in snout–vent length and have shagreen dorsal skin with low warts. Snout is truncate.
Male Nymphargus pluvialis measure in snout–vent length. Snout is truncate. Dorsal skin has warts and spinules.
The long dorsal sacroiliac ligament can become stretched in periods of increased lumbar lordosis (e.g., during pregnancy).
Also, the extra pressure causes synovitis which results in pain in the dorsal part of the wrist.
Desert lizards have fine, granular dorsal scales. The hind toes are elongated and possess fringes of scales.
The three cuneiform bones and the cuboid bone are connected together by dorsal, plantar, and interosseous ligaments.
The coloration is brown with some white on the dorsal folium, similar to other species in Anelosimus.
Its greatest distinguishing characteristic from other mudskippers is its greatly reduced first dorsal fin in both sexes.
Neuroligin mRNA are present in human endothelial cells from large blood vessels and in Dorsal Root Ganglions.
This fish is usually greenish-brown, or occasionally yellowish-brown, on its dorsal surface, and whitish underneath.
Slit2 begins the formation of axon branches through neural growth factor genes of the dorsal root ganglia.
The dorsal surface is broad and rounded. The distal surface of the bone is deep and concave.
The hindwing ground colour is grey with a discal spot. The abdomen is brown without dorsal tufts.
The pectoral fins and dorsal fin contain venomous spines; care should be used when handling this fish.
There are indistinct orange-brown dorsal and subcostal patches. Adults have been recorded on wing in July.
There is a large, round, dusky blotch directly below the first dorsal fin which sits beneath the lateral line at level of first dorsal fin, this blotch is similar in size to the eye. The lesser African threadfin can attain a total length of but is more normal.
Its dorsal part increases more rapidly than its ventral portion, and fuses with the dorsal part of the septum intermedium. For a time an interventricular foramen exists above its ventral portion, but this foramen is ultimately closed by the fusion of the aortic septum with the ventricular septum.
The tail is whitish with dark blotch. The caudal knives are relatively larger in males (sexual dimorphism). These fishes have six dorsal spines, 27-29 dorsal soft rays and 27-30 anal soft rays. Subadults show dark spots on head and body, while juveniles lack the prominent horn.
The dorsal fin has 3 to 4 spines of nearly equal length, and 44 to 47 soft rays. The anal fin has a single spine and 36 to 39 soft rays. The dorsal and anal fins bear a row of small yellow spots. The caudal fin is rounded.
Palpebral scales and superciliaries not separated by groove. Four or five pairs of nuchal scales, followed by several pairs of broadened mid-dorsal scales and broad row of fused mid-dorsal scales. Large medial preanal scales overlie small lateral pair. Ear lobules conspicuous, but not covering ear opening.
Its upperparts are dark or olive brown to black in colour with three paler dorsal stripes against the dorsal, saddle colouration; its underparts are yellowish with an olivaceous tinge. The tail is bushy, short with a black tip. Fur is soft, dense and short. Parts withour fur are grayish.
The first dorsal fin is small and widely separated from the second. The second dorsal fin is roughly the same size as the anal fin. The pectoral and ventral fins are pointed and are about the same lengths. It has a whitish body with scattered tiny brown spots.
Its general colouring is yellowish-pink with a yellow head and two rows of irregular dark golden blotches along the body. The fins are generally yellow with darker basal areas on the first dorsal and pectoral fins. The first dorsal fin has spiked rays, the third being the longest.
Assessor macneilli is a dark blue fish which has a thin paler blue edge on the dorsal, anal, and pelvic fins. The dorsal fin has 11 spines and 8-10 rays, the anal fin has 3 spines and 9-10 rays and the pectoral fins have 14-16 rays.
The species has a length of . The species is carnivorous, feeding mostly on brine shrimp and mysis shrimp, especially as pets. The species has 11 dorsal spines, nine dorsal soft rays, 3 anal spines, and 9 anal soft rays. The species has a coloration of peach to salmon.
The fish can grow to a length of 4.4 centimeters. It has 11 dorsal spines, nine dorsal soft rays, 3 anal spines, and 9 anal soft rays. Males are brown or bronze. The fish also has 15 pectoral rays and two horizontal scale rows are present under the eyes.
Other brainstem sites, such as the parabrachial nucleus, the dorsal raphe, locus coeruleus, and the medullary reticular formation also mediate pain relief and use many different neurotransmitters to either facilitate or inhibit activity of the neurons in the dorsal horn. These neurotransmitters include noradrenaline, serotonin, dopamine, histamine, and acetylcholine.
The dorsal sepal is erect, long and wide. The lateral sepals and petals have about the same dimensions as the dorsal sepal. The labellum is relatively flat, long, wide, bluish and white with the tip turned downwards. There are many rows of small, bead-like calli covering the labellum.
The loach goby is long. It has eight dorsal spines, eight or 9 soft dorsal rays, one anal spine, and eight or 9 anal rays. The head is flattened vertically, with a snout and small eyes. The mouth is on the underside and has a fleshy upper lip.
Adults of this species can grow up to at maximum length. They have 12 dorsal rays, 9 to 11 soft dorsal rays, 2 anal spines, and 9 to 11 anal soft rays on their fins. It is a blue green fish. When they are breeding, males turn more yellowish.
The pectoral fins are fairly small, narrow, and angular. The pelvic fins are small, with long, elongate claspers in males. The first dorsal fin has a rounded apex and originates over the posterior half of the pelvic fin bases. The second dorsal fin is much smaller and roughly triangular.
The Sargassum blenny has two quite distinct dorsal fins. The face is elongated and the mouth resembles that of a pike. There are no cirri. The general colour is brown with patches of silver on the flanks and there are 2 blue eyespots on the posterior dorsal fin.
Similar species include the spotted sand bass (P. maculatofasciatus), which can be distinguished by small spots all along the body. The barred and spotted sand bass have an elongated third dorsal spine, distinguishing them from the similar kelp bass (P. clathratus), which has dorsal spines of equal length.
The serratus dorsalis is medial to both the scapula and the serratus ventralis. Its origin is via apoeurosis following the length of the mid-dorsal line, and its insertion is the dorsal portion of the last ribs. Its action is to depress and retracts the ribs during breathing.
Adult males measure and adult females in snout–vent length. The tympanum is distinct. Neither dorsal folds nor dorsolateral folds are present; lateral folds are also absent or are largely interrupted. Most specimens have a glandular dorsum with muted, tile-like dorsal pattern of darker and lighter browns.
The coloration is grayish to brownish above and white below, with a pattern of scattered small, dark spots unique to each individual. The tips of the first dorsal fin and upper caudal fin lobe, and sometimes also the second dorsal fin and lower caudal fin lobe, are bright white.
Dorsally pale brown, with two series of round black spots, which may be light-edged. Dorsal surface of head black, nuchal collar black, and dorsal surface of tail black. Ventrals white, subcaudals white, and terminal caudal scale white. Adults may attain a total length of , with a tail long.
The flowers are green with red blotches. The dorsal sepal is long, about wide and forms a hood over the column. The lateral sepals are a similar length to the dorsal sepal but only half as wide. The petals are about long, wide and spread apart from each other.
Toes are moderately to extensively webbed and have small discs. Dorsal coloration varies from greyish brown to dark brown. Coloration may appear uniform but typically includes some lighter and darker spots, often with reddish spots on head and limbs. Some individuals have a light brown mid-dorsal stripe.
Female and male tuberculate pelagic octopuses have distinct morphological differences. Females exhibit a larger dorsal mantle length upon maturity around 300 millimeters, while males only reach a dorsal mantle length of around 30 millimeters. The females are around long when full-grown. The males are considerably smaller, around .
The moth flies from June to September depending on the location. Larva dark grey with a greenish tinge: dorsal line broadly white, sometimes interrupted; a pale line above feet. greenish tinge: dorsal line broadly white, sometimes interrupted; a pale line above feet. The larvae feed on various lichen.
Ithaca and London: Comstock Publishing Associates. 870 pp. 1,500 plates. . Regarding the coloration, this subspecies has dorsal spots that are more rounded, usually has a whitish belly that is heavily flecked or mottled with black or dark brown, and generally has 23 rows of dorsal scales at midbody.
Its lorica is firm, oval, divided into a dorsal and a ventral plate. The anterior dorsal margin has six thin, acutely pointed spines. It is sometimes lightly stippled and may have wavy lines in some cases. Its mental edge is firm and elevated, with a small median notch.
Opsin Evolution in Damselfish: Convergence, Reversal, and Parallel Evolution Across Tuning Sites. Journal of Molecular Evolution, vol 75, pages 79-91. It has an average length of 9.0 cm, but can reach lengths of 14.0 cm. It has 12 dorsal spines, and 15 to 17 dorsal soft rays.
Segments 8 to 10 are blue; segment 10 has a narrow mid-dorsal stripe. Female is similar to the male; but ground color of thorax and eyes are replaced with greenish yellow. Dorsal mark on abdominal segments is extended to all. Lateral sides of the abdomen is pale blue.
Snout moderately long and bluntly rounded viewed from the side. Fins have fleshy bases although the paired fins less so. Fins rounded, anal and dorsal fins roughly the same length with the dorsal usually slightly longer. Pelvic fins positioned approximately mid way along the body, pectoral fins paddle shaped.
The forewings of the males are dark fuscous, darkest in the cell. The dorsal area is light fuscous from the base almost to the tornus. The hindwings are dark fuscous. Females have ochreous-whitish forewings, sprinkled with light brownish posteriorly and on the dorsal area, except near the base.
The first costal and dorsal spots are joined to form a narrow fascia, wider at dorsum. The second dorsal and costal spots are as in males. The species is multivoltine, with adults on wing from September to early May. The larvae feed on Rhoicissus digitata and Vitis vinifera.
Laniatores with coxa IV immensely developed, widely surpassing dorsal scutum in dorsal view in most species. Many species with double ozopore. Pedipalpus with cylindrical segments, strongly spined, tibia and tarsus flattened ventrally. Basal segments of leg IV with strong sexual dimorphism, shown either in spination, curvature or length.
Forewings basal area is orange in color. Larva reddish with black streaks, lateral dots and yellow transverse stripes. Paired oblique white stripes run across 9th and 10th somites. Somites 5, 6, 7 and 11 with dorsal prominences and somites 3,4 and 5 each with four spatulate dorsal filaments.
This species is light grey to bronze above, darkening at the tips of the second dorsal fin and upper caudal fin lobe (though this may be indistinct in larger sharks), and pale below. The underside is off-white, and the first dorsal fin has a pale trailing margin.
Sharply pointed at the head, with two strong lateral points and keeled on the dorsal surface of the thoracic segments. There is an interrupted yellow dorsal line, and a short curved crimson line on each side below the thoracic segments bordering a small white irregular black speckled spot.
The rear joint of the mouth extends past the level of rear margin of the adipose eyelid. The rear margin of the gill cover is serrated. They have two dorsal fins with the first dorsal fin having 8 spines and the second dorsal fin has a single spine and 11 to 13 soft rays while the anal fin has 3 spines and 10 to 15 soft rays. The base of the anal fin is shorter than the length of the head.
The lower teeth are much larger, with a strongly slanted, blade-like cusp at the top and interlocking bases. The five pairs of gill slits are tiny, comparable in size to the spiracles. Both dorsal fins bear stout, grooved spines at the front, with the second much longer than the first and curved. The first dorsal fin originates behind the short and rounded pectoral fins; the second dorsal fin is twice the size of the first and originates behind the pelvic fins.
Maintaining balance while standing in the stationary position relies on intact sensory pathways, sensorimotor integration centers and motor pathways. The main sensory inputs are: # Joint position sense (proprioception), carried in the dorsal columns of the spinal cord, the dorsal and ventral spinocerebellar tracts. # Vision # Vestibular apparatus Crucially, the brain can obtain sufficient information to maintain balance if any two of the three systems are intact. Sensorimotor integration is carried out by the cerebellum and by the dorsal column-medial lemniscus tract.
The first dorsal fin is high and broad, with a pointed apex and a concave trailing margin; its origin lies roughly over the insertion (the rear of the fin base) of the pectoral fins. The second dorsal fin is relatively large and located about opposite the anal fin, which is about of equal size. There is no ridge between the dorsal fins. The caudal fin has a well-developed lower lobe and a ventral notch near the tip of the upper lobe.
Small depressions on the upper jaw each contain a lone stiff hair, but are only visible on close inspection. Its head's ventral surface lacks the numerous prominent furrows of the related rorquals, instead bearing two to five shallow furrows on the throat's underside. The gray whale also lacks a dorsal fin, instead bearing 6 to 12 dorsal crenulations ("knuckles"), which are raised bumps on the midline of its rear quarter, leading to the flukes. This is known as the dorsal ridge.
Body moderately stout and compressed, preoral snout moderately long, about half of distance from mouth to pectoral origins; mouth narrowly arched, nearly half as high as wide. Second dorsal fin somewhat larger than first; pectoral apices when laid back ending about opposite to first dorsal spine origin. Caudal peduncle moderately long, distance from second dorsal insertion to upper caudal origin about as long as distance from eye to third gill slits. Lateral trunk denticles close-set, conical and with hooked cusps.
The two species of Squaliolus are the only sharks with a spine on the first dorsal fin but not the second. The spine is sexually dimorphic, being typically exposed in males and enclosed by skin in females. The first dorsal fin is tiny and originates over the trailing margin of the pectoral fins. The second dorsal fin is low, with a base twice as long as that of the first, and originates over the anterior half of the pelvic fin bases.
Fishes of Texas Project and Online Database (www.fishesoftexas.org). Published by Texas Natural History Collection, a division of Texas Natural Science Center, University of Texas at Austin. 2012. In Fundulus olivaceus, the gill slit extends the dorsal to the uppermost pectoral fin ray. The distance from the origin of the dorsal fin to the end of the hypural plate is less than the distance from the origin of the dorsal fin to the preopercle or occasionally about equal to that distance.
Shortly after a spinal nerve forms from the dorsal and ventral roots of the spinal cord it branches into the dorsal ramus and ventral ramus. Spinal nerves are mixed nerves that carry both sensory and motor information. It also branches to form the grey and the white rami communicantes which make connections with the sympathetic ganglia. After it is formed, the dorsal ramus of each spinal nerve travels backward, except for the first cervical, the fourth and fifth sacral, and the coccygeal.
The abdominal surface is pearl or slaty coloured. The dorsal color of the Chinese cobra is usually brown, grey or black, with or without narrow, light transverse lines at irregular intervals which are especially prominent in juveniles. The upper head is usually the same color as the tail and dorsal part of the body, while the sides of the head are lighter in colour. Specimens with other colors on their dorsal surface, such as white, yellow or brown do occur.
Regalecus russelii can grow up to 8 meters in length, and it has two dorsal fin crests that can reach 1 meter high. The species can be distinguished by its red dorsal fin crests, light brown head, and scaleless, silver body. The body is covered by dermal tubercles, which are concentrated along the ventral and lower side regions of the body. Each dorsal fin has 333 to 371 rays, which shorten and then become longer at the middle of the body.
E. colini typically have 8 dorsal spines, 10-12 dorsal soft rays, 1 anal spine, 10–11 anal soft rays, and 17-19 pectoral rays. They lack scales and are covered with a thick adherent mucus. The bodies of E. colini are bluish- greenish gray above their lateral stripe, with the dorsal part of their head, iris, and lips exhibiting a bright yellow color and the ventral part of their body being white. Their fins are a translucent gray color.
As with most of the genus Sillago, the Indian whiting has a slightly compressed, elongate body tapering toward the terminal mouth. The body is covered in small ctenoid scales extending to the cheek and head. The first dorsal fin has 11 spines and the second dorsal fin has 1 leading spine with 21 to 22 soft rays posterior. The anal fin is similar to the second dorsal fin, but has 2 spines with 22 to 23 soft rays posterior to the spines.
The dorsal sepal and petals are fused, forming a hood or "galea" over the column. The dorsal sepal is more or less erect near its base then suddenly curves forward then below horizontal. The petals are slightly flared and slightly shorter than the dorsal sepal. There is a wide gap between the lateral sepals and the galea and the lateral sepals have thread-like tips which are erect, spread slightly apart from each other and are higher than the galea.
The "false dorsal" or "countershading dorsal" can mimic the dorsal stripe associated with dun horses and is associated with the sooty trait. The most extensive expression of sooty produces a dark, often-dappled cast oriented down from the topline. Many horses with the sooty trait have a darker mask on the bony parts of the face. It was once thought that the sooty trait was responsible for turning chestnut into liver chestnut, however it is not known to evenly darken the coat.
The illicium is twice the length of the second dorsal spine and its often darkly banded. The second dorsal spine is practically straight and is mobile, and the third one is bent towards the back of the body; both are membranously attached to the head. They are well separated from each other and from the dorsal fin. The pectoral fins are angled and help, with the pelvic fins, to move the frogfish on the bottom and to keep a stable position for ambush.
Although the lookdown is similar to the Atlantic moonfish, it can be distinguished by its dorsal and anal fins, the second ray on each fin being many times longer than the surrounding rays. This gives the dorsal and anal fins a noticeably scythe-like shape. Also, the dorsal fin of the lookdown has 9 spines and 23 rays, while the anal fin has only 3 spines and 18 rays. Like the Atlantic moonfish, it has a deep, rhombus- shaped, laterally-compressed body.
Dorsal carpal wedge osteotomy Children with the amyoplasia type of arthrogryposis usually have flexion and ulnar deviation of the wrists. Dorsal carpal wedge osteotomy is indicated for wrists with excessive flexion contracture deformity when non- surgical interventions such as occupational therapy and splinting have failed to improve function. On the dorsal side, at the level of the midcarpus, a wedge osteotomy is made. Sufficient bone is resected to at least be able to put the wrist in a neutral position.
The outer pair of mandibular barbels is about twice as long as the inner pair. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. budgetti, the spine of the dorsal fin is long and slightly curved, about as long as the head, bearing a long filament, smooth in the front and serrated on the back. The remaining portion of the dorsal fin is made up of seven branching rays.
The outer pair of mandibular barbels is about twice the length of the inner pair, and both pairs have long, slender branches. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. nigromaculatus, the spine of the dorsal fin is straight and long, about as long as the head, smooth in the front and serrated on the back. The remaining portion of the dorsal fin is made up of seven branching rays.
The outer pair of mandibular barbels is about twice the length of the inner pair, and both have long, slender branches. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. ocellifer, the spine of the dorsal fin is short, a little shorter than the head, smooth in the front and serrated on the back, and curved. The remaining portion of the dorsal fin is made up of seven branching rays.
The outer pair of mandibular barbels is a little under twice the length of the inner pair, and both pairs have short branches. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. macrostigma, the spine of the dorsal fin is about as long as the head, slightly curved, smooth in the front and serrated on the back. The remaining portion of the dorsal fin is made up of seven branching rays.
The outer pair of mandibular barbels is about twice the length of the inner pair, and both pairs have short, stiff branches near the base. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. multimaculatus, the spine of the dorsal fin is slightly shorter than the head, smooth in the front and serrated on the back. The remaining portion of the dorsal fin is made up of seven branching rays.
The basal plate forms most of the ventral portion of the nervous system, including the motor portion of the spinal cord and brain stem; the alar plate forms the dorsal portions, devoted mostly to sensory processing. The dorsal epidermis expresses BMP4 and BMP7. The roof plate of the neural tube responds to those signals by expressing more BMP4 and other transforming growth factor beta (TGF-β) signals to form a dorsal/ventral gradient among the neural tube. The notochord expresses SHH.
The outer pair of mandibular barbels is about twice the length of the inner pair, and both pairs have long branches. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. frontosus, the spine of the dorsal fin is short, about the length of the head, smooth in the front and serrated on the back. The remaining portion of the dorsal fin is made up of seven branching rays.
External granular papilla are not present. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. grandiops, the spine of the dorsal fin is long, about as long as the head, is almost completely straight, contains up to three small serrations on the front and many small serrations on the back, and ends with short, white filaments. The remaining portion of the dorsal fin is made up of seven branching rays.
External sort, flat papilla are present and give the skin a pebbled appearance. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. ilebrevis, the spine of the dorsal fin is short, about as long as the head, slightly curved, rough on the front and serrated on the back, and ends with short, dusky filament. The remaining portion of the dorsal fin is made up of seven branching rays.
A sciaenid has a long dorsal fin reaching nearly to the tail, and a notch between the rays and spines of the dorsal, although the two parts are actually separate. Drums are somberly coloured, usually in shades of brown, with a lateral line on each side that extends to the tip of the caudal fin. The anal fin usually has two spines, while the dorsal fins are deeply notched or separate. Most species have a rounded or pointed caudal fin.
In human embryonic development, BMP4 is a critical signaling molecule required for the early differentiation of the embryo and establishing of a dorsal-ventral axis. BMP4 is secreted from the dorsal portion of the notochord, and it acts in concert with sonic hedgehog (released from the ventral portion of the notochord) to establish a dorsal-ventral axis for the differentiation of later structures. BMP4 stimulates differentiation of overlying ectodermal tissue. Bone morphogenetic proteins are known to stimulate bone formation in adult animals.
As with most of the genus Sillago, the bay whiting has a slightly compressed, elongate body tapering toward the terminal mouth. The body is covered in small ctenoid scales extending to the two rows of cheek scales and head. The first dorsal fin has 11 spines and the second dorsal fin has 1 leading spine with 17 soft rays posterior. The anal fin is similar to the second dorsal fin, but has 2 spines with 17 soft rays posterior to the spines.
Abdomen is golden-yellow on dorsum, fading to greenish-yellow laterally, marked with black and reddish-brown. There is a narrow sub-dorsal stripe extending in a very broken manner from segment 2 to the end of abdomen. There is a mid-dorsal stripe black on carina, brown at its borders extending from segment 2 to 9, broadening on the terminal segments and becoming confluent with the sub-dorsal stripe. Segment 10 is yellow, with base and apical border narrowly black.
The blotchside darter is mostly covered with blotches on the midlateral row of the body. It has prepectoral scales and an orange submarginal band in the first dorsal fin. There are 15-18 dorsal spines, 14-15 dorsal rays, 14-15 pectoral rays, 2 anal spines, 10-12 anal rays, and 6 branchiostegal rays. The species is olive in color dorsally, cream-colored ventrally, and has a lateral series of 8-10 dark green to black round or oval blotches.
The body of A. pacificus is pinkish brown dark brown, usually grading to yellowish or orange on lower side of body including abdomen. It is a member of the skunk complex with the characteristic white stripe along the dorsal ridge line, from the midline of the snout through to the base of caudal fin. The fins are whitish to semi-translucent. It has 9 dorsal spines, 2 anal spines, 18-20 dorsal soft rays and 12-13 anal soft rays.
External thin papilla are present but do not extend onto the fins. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. polli, the spine of the dorsal fin is short, about as long as the head, is slightly curved, is smooth on the front and finely serrated on the back, and ends with short, dark filament. The remaining portion of the dorsal fin is made up of seven branching rays.
The outer pair of mandibular barbels is about twice the length of the inner pair, and both pairs have slender, simple branches. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. victoriae, the spine of the dorsal fin is slightly shorter than the head, straight, smooth in the front and serrated on the back. The remaining portion of the dorsal fin is made up of six to seven branching rays.
This species grows up to 8 centimetres (3 in) total length. It is easily differentiated from all other cardinalfishes by its tasseled first dorsal fin, elongated anal and second dorsal fin rays, deeply forked caudal fin, and color pattern consisting of three black bars across the head and body and prominent black anterior edges on the anal and second dorsal fin. The male can be differentiated from the female by a conspicuous, enlarged oral cavity, which is apparent only when they are brooding.
The outer pair of mandibular barbels is about twice the length of the inner pair, and both pairs have long, slender branches. The front edges of the dorsal fins and the pectoral fins of Syntontis species are hardened into stiff spines. In S. zambezensis, the spine of the dorsal fin is slightly curved, short, about as long as the head, smooth in the front and serrated on the back. The remaining portion of the dorsal fin is made up of seven branching rays.
A relatively complete series of dorsal vertebrae are known, which number one to seven. All of the dorsals, however, are distorted upwards due to their state of preservation. Bonaparte & Mateus (1999) noted that the position of the dorsals was not certain, and that in fact the first dorsal could have been the last cervical or even the second dorsal. A similar numbering was found in Diplodocus, with the first and second dorsals similar in anatomy to the last and second-last cervical.
Its extremity is endowed with a characteristic esca (lure), which resembles a small fish or shrimp with a pinkish to brownish coloration. The illicium is twice the length of the second dorsal spine and is often darkly banded. The second dorsal spine is practically straight and is mobile, the third one is bent towards the back of the body, and both are membranously attached to the head. They are well separated from each other and also from the dorsal fin.
Acanthobunocephalus nicoi is the only species of catfish (order Siluriformes) in the genus Acanthobunocephalus of the family Aspredinidae. This species is known from only three localities and appears to be restricted to the upper Orinoco River system of Venezuela and possibly the upper Rio Negro system of Brazil. Acanthobunocephalus nicoi can be differentiated from other aspredinids by the presence of a dorsal fin spine locking mechanism and a rigid dorsal fin spine. The lateral line is truncated at about the dorsal fin level.
A black stripe extends from the tail, along the dorsal midline to the head, where it forks at the top of the head in a distinguishing Y-shape leading to the dark rings around both eyes, and sometimes extends down the snout. The dorsal stripe varies in width and darkness. The base of the tail is the same color as the dorsal fur and is usually tipped in black; the tail is bushy. The lemurs' ears are relatively large and membranous.
In neuroanatomy, the dorsal column nuclei are a pair of nuclei in the dorsal columns in the brainstem. The name refers collectively to the cuneate nucleus and gracile nucleus, which are present at the junction between the spinal cord and the medulla oblongata. Both nuclei contain second-order neurons of the dorsal column-medial lemniscus pathway, which carries fine touch and proprioceptive information from the body to the brain. Each nucleus has an associated nerve tract, the gracile fasciculus and the cuneate fasciculus.
The dorsal sepal and petals are fused, forming a hood or "galea" over the column. The dorsal sepal is erect near its base, then curves forward in a semi-circle, the dorsal sepal slightly longer than the petals. The lateral sepals partly close off the front of the flower and are erect, in close contact with the galea with their tips about the same height as the top of the galea. The labellum is long, and barely visible from outside the intact flower.
Solitary tract nucleus in the dorsal respiratory group and nucleus ambiguus of the ventral respiratory group shown in their positions on the medulla oblongata. The dorsal respiratory group (DRG) has the most fundamental role in the control of respiration, initiating inspiration (inhalation). The DRG is a collection of neurons forming an elongated mass that extends most of the length of the dorsal medulla. They are near to the central canal of the spinal cord, and just behind the ventral group.
Moore KL, TPersaud TVN, Torchia MG. The Developing Human: Clinically Oriented Embryology with Student Consult Online Assess, 9th Edition. Saunders; To reconcile these differences, several theories of embryologic mesenteric development—including the "regression" and "sliding" theories—have been proposed, but none has been widely accepted. The portion of the dorsal mesentery that attaches to the greater curvature of the stomach, is known as the dorsal mesogastrium. The part of the dorsal mesentery that suspends the colon is termed the mesocolon.
These are considered frog-fish because of their characteristics: "12 dorsal rays, last two or three branched; bony part of first dorsal spine slightly shorter than second dorsal spine; body without bold zebra-like markings; caudal peduncle short, but distinct; last pelvic ray divided; pectoral rays 11 or 12". In 2018, the government decided to limit the stay period for tourists from 90 days to 30 days because of social and environmental issues faced by the Island to preserve its historical importance.
Kyphosichthys (Greek for "bent fish") has a strongly arched hump between the head and the dorsal fin, from which its name derives. The holotype measures 96 mm in total length, and 76 mm in standard length. The greatest body height occurs at the posterior opercular margin, where the body height is over 70% of the standard length. The dorsal fin and anal fin are located far back on the body, the latter is only half as long as the dorsal fin.
Larval P. pulcher Like other Pelvicachromis species, P. pulcher is sexually dimorphic. Males have pointed pelvic, dorsal, and anal fins, while the female's pelvic, dorsal, and anal fins are more rounded in appearance. In addition, males are larger, lack the gold sheen to the dorsal fin and have a more elongated, spade-shaped caudal fin. Despite the suggestion in the aquarium literature that the species forms monogamous pairs, the formation of polygynous harems is not uncommon in the natural habitat.
Modiolus auriculatus has an equivalve shell with each valve being inequilateral with their beaks being very close to the anterior end. The shell is the typical mussel form with the ligament and dorsal margins distinctly disjunct and the dorsal and ventral margins being parallel; the dorsal margin is concave. The shell has a smooth with growth lines and the covering periostracum is pubescent. The outer surfaces of the shell is olive-brownish or orange-brown and the shell interior is browny-purple.
The limbs are relatively long, with well-developed hands and feet with comparatively long and slender digits. The dorsal ground color is reddish brown, grading to pale yellow ventrally. There is a broad and conspicuous orange mid-dorsal stripe that runs from the scapular region to the tip of the tail; in the head region, this dorsal stripe is broken into darker flecks. There are bright yellow spots all over the dorsum but they are more concentrated on the tail.
The tuft on the second joint is compressed, pointed and longer than the terminal joint. The head and thorax are white. The dorsal half of the forewings from base to tornus is dark reddish-brown, with strong purple reflections, but lighter and more yellowish on the dorsal edge, gradually becoming darker and more purple towards the middle of the wing. Bordering this dorsal part, the edge of which is sharply defined as a straight central line, is a longitudinal pure white streak.
The dorsal fin has ten to twelve soft rays, the anal fin fifteen and the pectoral fins twelve. The dorsal fin is shorter than the anal fin, and its origin is posterior to the origin of the anal fin. The fifth ray of the dorsal fin is the longest but is not as long as the second ray of the anal fin. This is modified in males into an "andropodium", a movable intromittent organ used to deliver milt into the female's genital opening.
The first dorsal fin originates over the posterior half of the pectoral fin bases. The second dorsal fin is about half as tall as the first and located over or slightly ahead of the anal fin. The anal fin is smaller than the second dorsal fin and has a deep notch in the rear margin. The caudal fin has a well-developed lower lobe and is preceded by a crescent-shaped notch on the upper side of the caudal peduncle.
The spines in the dorsal fins of female are alternately dark and uncolored whereas all the spines in the males dorsal fin are colorless, the membrane in the dorsal fin being clear in females and spotted in males. The cheek, gill cover and breast are scaleless while the belly and nape are scaled. When spawning the males darken, to almost black, on the head and the fins become more intensely colored. The maximum published total length is , although around is more common.
Typothoracisinae is a clade of aetosaurs within the subfamily Aetosaurinae. It is a stem-based taxon defined as all aetosaurs closer to Typothorax than to Stagonolepis or Desmatosuchus. As with many aetosaur taxa, most of the synapomorphies that diagnose the clade are found in the osteoderms. These include a strongly acute angle of flexion between the dorsal and lateral flanges of the dorsal and lateral plates and triangular-shaped pelvic and anterior caudal dorsal lateral plates possessing semicircular borders and hook-like eminences.
Tibiae are with (Myopinae) or without dorsal preapical bristle. Sample genera: Conops, Dalmannia, Physocephala, Stylogaster, Myopa, and Physoconops.
Head pale brown, mouth parts dark brown, body transparent yellowish green with broad red dorsal and lateral lines.
Some species biomineralize in calcium carbonate. Circulatory system Circulatory system is open type. Heart of Hemichordates is dorsal.
One study reports that damage to the bilateral dorsal occipitoparietal regions appeared to be involved in Bálint's syndrome.
Adult wingspan is . Forewings dark brown. Some specimen with sub-dorsal longitudinal dark bar. Tymbal organs are absent.
The abdomen is greying brown on the dorsal surface except for the first two segments which are grey.
Body cylindrical; tail short. Dorsal scales smooth, without pits, in 25 or 27 rows. Ventrals rounded; subcaudals single.
Nostril between two nasals. No loreal. Body cylindrical; tail short. Dorsal scales smooth, without pits, in 17 rows.
Juveniles are white with a black spot on the dorsal fin and an orange band through the eye.
Along the dorsal side of the caterpillars is a row of black triangles flanked either side by white.
Thorax with a long furrowed crest behind the collar. Abdomen with dorsal tufts on proximal segments. Tibia spineless.
The membranes between dorsal fin spines have a yellow margin. This species attains a maximum total length of .
They are pale greenish grey, with dull reddish dorsal, subdorsal, and lateral lines and a yellowish brown head.
Dorsal coloration consists of marbling of various shades of brown on cream background, sometimes with a reddish tinge.
A very small Subsaharan Myotis, with a forearm length of 37 mm, brown dorsal and greyish ventral pelage.
Snout short, dorsal scales with smooth granules. Median sub-caudals are enlarged. Ventrals smooth. Pre-anal pores absent.
Lower eyelid comprising three transparent scales. Ears are small. Dorsal scales enlarged. Dorsum and venter are pinkish brown.
Though not keeled, the front dorsal vertebrae have paired hypapophyses at their undersides, just as with Streptospondylus altdorfensis.
Solitary, sessile tunicate. Incurrent and excurrent siphons directed upwards, away from substratum. Without dorsal nerve cord as adult.
It can be distinguished from other darters by its unique front and rear spots on the dorsal fin.
Ventral bar 55 µm long; dorsal bar 46 µm long. Hook 11 µm long. Pharynx 45 µm wide.
The fish grows to a total length of 12.7 centimeters. It neither has dorsal spines nor anal spines.
The dorsal fin is short and possesses strong, serrated, fin spines, which are strong enough to inflict wounds.
Many populations have bright orange dorsal stripes, however some have bright green, pink, yellow, cream or uncoloured stripes.
Males are much more colourful than females, and develop pointed dorsal and anal fins when they are mature.
Unlike most other diplodocoids, which have square-shaped snouts in dorsal view, Lingwulong had a U-shaped snout.
The chilidium is a convex plate often covering the cardinal process of the dorsal valve in the Protremata.
The axons from dopamine neurons emanate from a primary dendrite and project ipsilaterally (on the same side) via the medial forebrain bundle to the dorsal striatum. There is a rough topographical correlation between the anatomical localization of the dopamine cell body within the SNc and the area of termination in the dorsal striatum. Dopaminergic cells in the lateral parts of the SNc project mainly to the lateral and caudal (posterior) parts of the striatum, whereas dopamine cells in the medial SNc project to the medial striatum. In addition, dopamine cells in the dorsal tier project to the ventromedial striatum, whereas the ventral tier neurons project to the dorsal caudate nucleus and putamen.
The Dorsal mountain ridge or Dorsal of Pedro Gil covers the area from the start at Mount La Esperanza, at a height of about , to the center of the island, near the Caldera de Las Cañadas, with Izaña, as its highest point at (MSLP). These mountains have been created due to basaltic fissural volcanism through one of the axis that gave birth to the vulcanism of this area. The Abeque Dorsal was formed by a chain of volcanoes that join the Teno with the central insular peak of Teide-Pico Viejo starting from another of the three axis of Tenerife's geological structures. On this dorsal we find the historic volcano of Chinyero whose last eruption happened in 1909.
In the mid-1970s Alan R. Light, Miklós Réthelyi, and Daniel Trevino joined Perl's laboratory to further map the central terminations of thinly-myelinated primary afferent neurons, to study their synaptic morphologies, and to characterize neurons in the dorsal horn of the spinal cord that were responsive to activity of these fibers.Light AR and Perl ER. Differential termination of large-diameter and small-diameter primary afferent fibers in the spinal dorsal gray matter as indicated by labeling with horseradish peroxidase. Neurosci. Lett. 6: 59-63, 1977.Light AR and Perl ER. Reexamination of the dorsal root projection to the spinal dorsal horn including observations on the differential termination of coarse and fine fibers.
The lateral line is continuous and evenly curved. The dorsal fin is continuous, the spiny part is low and contains 11-13 spines and is arched in shape with the fifth to seventh spines being the longest although the longest dorsal spine is shorter than the longest dorsal soft ray, the soft-rayed part of the dorsal fin is rounded and contains 13-14 soft rays. All 3 anal spines are short, robust and curved with the first one being half as long as second soft anal rounded with the third being slightly shorter than the second. The anal fin soft rays are all longer than the spines and there are 11-12 of them.
The anal fin has three spines and seven soft rays. The caudal fin is rounded. The colour of the head and body is white to pink to reddish with a ref iris and the dorsal part of the head and nape being red. There is a white band which runs along the middle of the head starting at the top lip and ending at the 2nd spine in the dorsal fin and another wide red bar which runs from the soft rayed portion of the dorsal fin vertically on the body onto the anal fin> The anal and dorsal fins have white edges, the pelvic fins are white while the caudal fin is red with a white posterior margin.
They have tiny conical teeth on the mandibles and on the vomer and palatine bones. There are two dorsal fins an anterior dorsal fin with 6 slender spines and a posterior dorsal fin with 13 to 18 soft rays, the pelvic fins have 1 weak spine and 5 branched rays and these are positioned anteriorly to the pectoral fins with their bases widely separated. The anal fin has only 15 to 25 soft rays and the pectoral fins have between 20 and 28 rays. They body is covered in ctenoid scales and the lateral line curves underneath the anterior dorsal fin to below the middle of the flank with the 2 or 3 scales nearest the head being keeled.
There is a small bar on the tip of the lower lobe. The width of biggest lower caudal-fin lobe bar and/or the space between outermost bars is less than the diameter of the orbit. They doi not have any flank stripes and the tip of first dorsal-fin is dark, The barbels are white as is the belly while the flanks are rose-red darkening towards the back where there is some gold iridescence along the upper flanks and a dark saddle to the rear of the second dorsal fin. The body is uniformly brown, with a little dorsal darkening, with the bars and black first dorsal- fin tip still visible in preserved fish.
Collapsed or collapsing dorsal fins are rare in most wild populations and usually result from a serious injury to the fin, such as from being shot or colliding with a vessel. After exposure to the 1989 Exxon Valdez oil spill, two male resident killer whales experienced dorsal fin collapse, and the animals subsequently died. In 2002, the dorsal fin of a stranded killer whale showed signs of collapse after three days but regained its natural upright appearance as soon as the orca resumed strong normal swimming upon release. A study in 1998 recorded that 7 out of 30 (23%) adult male killer whales off the coast of New Zealand had abnormal dorsal fins.
Tropidosteus curvatus is a large, extinct holonematid arthrodire placoderm from the Givetian-aged Crinoidenmergel stratum of Middle Devonian Rheinland, Germany. T. curvatus is known from primarily from a slender, 42 centimeter long, arched median dorsal plate, where the two sides meet at a sixty to ninety degree angle, which would have given the live animal a humped appearance. The median dorsal plate is very similar to the median dorsal plates of Rhenonema and Belemnacanthus, and is the primary reason for T. curvatus' placement within Holonematidae. After stating this reason, Denison, 1978, then questions Tropidosteus' placement within the family, noting that the dorsal plate lacks ridged ornamentation, which is a key diagnostic trait of the family.
Some spots are from dark green to black, the abdomen is somewhat grayish, and there is a circle outside. The turbot has a small amount of thorns on its surface, and its dorsal fin is hard and long, extending from the tip of the nose, with short rays and almost to the back. Both sides of the body are heavily scaled with small, and scales are deeply embedded in thick skin (73-86 along the side lines), scales on both sides cover lots of ventral surfaces. Its caudal fin is relatively small, similar in shape to the dorsal fin, and extends from the dorsal fin to the caudal fin at the same level as the dorsal fin.
The intermediate dorsal cutaneous nerve (external dorsal cutaneous branch), the smaller, passes along the lateral part of the dorsum of the foot, and divides into dorsal digital branches, which supply the contiguous sides of the third and fourth, and of the fourth and fifth toes. It also supplies the skin of the lateral side of the foot and ankle, and communicates with the sural nerve. The branches of the superficial peroneal nerve supply the skin of the dorsal surfaces of all the toes excepting the lateral side of the little toe, and the adjoining sides of the great and second toes, the former being supplied by the lateral dorsal cutaneous nerve from the sural nerve, and the latter by the medial branch of the deep peroneal nerve. Frequently some of the lateral branches of the superficial peroneal are absent, and their places are then taken by branches of the sural nerve.
Boulengerella cuiveri grows to a maximum length of , and has a maximum published weight of . It has ten to eleven dorsal soft rays, nine to eleven anal soft rays, and 48 to 49 vertebrae. It lacks dorsal and anal spines. It is a carnivore, and typically preys upon smaller fish.
The cheek bones are wide, and the ears measure in length. It has elongated, convex auditory bullae. The summer dorsal pelage is reddish brown, and the underparts are yellow tinged or light white in colour. The winter dorsal pelage is mouse grey in colour, and the hairs have noticeable black tips.
All dorsal interossei are innervated by the lateral plantar nerve (S2–3). Those in the fourth interosseous space are innervated by the superficial branch and the other by the deep branch. The first and second dorsal interossei muscles additionally receive innervation from the lateral branch of the deep fibular nerve.
Relatively few specimens are known so far. Mature individuals of this species reach a length of 19.1 - 21.5 cm. Both dorsal and ventral surfaces are dark brown to purplish-black, with irregular whitish blotches on the belly. Gill slits are very narrow; the second dorsal fin is slightly larger than first.
The neural spine extends vertical along the length of the neural arch. There are 29 dorsal vertebrae with large ribs. Compared to the cervical vertebrae, the neural arch of the dorsal vertebrae is much wider and swollen. With less prominent transverse processes, the ribs articulate with the body of the centrum.
The other fins have no distinctive markings, but do have pale posterior edges. The blackspot shark can be confused with the whitecheek shark (Carcharhinus dussumieri), but that species has a triangular first dorsal fin that is only slightly falcate, and a small second dorsal fin that merely has a dark margin.
89 pp. They can be identified from other common minnow species by the black "moustache" on their upper lips, along with a black dot on their dorsal fins. Additionally, juvenile males develop a rosy band on their sides, along with glossy, dark dorsal fin spots.Etnier, D.A., and W.C. Starnes. 1993.
Rhombophryne botabota measure up to . In life, the dorsal skin is fairly smooth in texture. The lateral head is different in colour from the dorsum, which is unusual among Rhombophryne species. The species' dorsal colouration is variable, sometimes including dark, chevron- like markings, and in other cases being fairly uniformly brown.
Both have straight leading margins and somewhat angular apexes. The space between the dorsal fins is greater than the space between the second dorsal and caudal fins. The caudal peduncle is flattened and expanded laterally to form keels. The lower lobe of the caudal fin is markedly larger than the upper.
Tschanz, K. 1988. Allometry and Heterochrony in the Growth of the Neck of Triassic Prolacertiform Reptiles. Paleontology. 31:997–1011. The body contained 13 hourglass-shaped dorsal vertebrae, two sacral vertebrae and approximately twelve caudal vertebrae with weakly developed dorsal and haemal spines along with well-developed transverse processes.Wild, R. 1973.
The dorsal venous network of the hand is a network of veins in the superficial fascia on the dorsum of hand formed by the dorsal metacarpal veins. It is found on the back of the hand and gives rise to veins such as the cephalic vein and the basilic vein.
The darker dorsal coloration fades on the flanks. In most individuals, the venter is uniform dark gray with minute white spots on the warts. Some individuals, however, have white or cream ventral coloration, with distinctive dark gray marbling. Most individuals have dark transverse bars on dorsal surfaces of their limbs.
The body is broadly ovate and highly dorso- ventrally flat. It is widest at the abdomen and narrows anteriorly and posteriorly. It is soft bodied and the dorsal-ventral body margin is distinctly lobed. The dorsal surfaces are yellowish white with the head and poorly developed thoracic tergal plates distinctly darker.
Opheodrys is a genus of small to medium-sized non-venomous colubrid snakes commonly referred to as green snakes. In North America the genus consists of two distinct species. As their common names imply, the rough green snake has keeled dorsal scales, whereas the smooth green snake has smooth dorsal scales.
The combtooth dogfish has no anal fin, grooved dorsal spines, two dorsal fins of about same size, a pointed nose, large eyes, small gill slits, a short abdomen, a short caudal peduncle, and is blackish-brown in color with white-tipped fins. It grows to a maximum of 50 cm.
Thalassophryninae is a subfamily of toadfish in the family Batrachoididae. The species in the subfamily are characterised by the possession of two dorsal fin spines, a lack of subopercular spines, with the dorsal and opercular spines being hollow and have venom glands at their base. They do not have canine teeth.
The tips of the tubercle are black and the osmeterium is dark red. Pupa: The pupa is yellowish green or brown and is marked with greyish veins as in a leaf. It may have a broad dorsal pale saddle mark. The abdomen has eight pairs of sharp dorsal processes, directed laterally.
It differs from P. meganmarieae by the minimally expanded medial end of the dorsal bars (medial end of dorsal bar about twice as wide as the distal end in P. meganmarieae) and by having the shaft of the ventral anchor forming a gentle arc (shaft comparatively straight in P. meganmarieae).
Female pale ochreous brown, with some dark brown suffusion inside the double oblique line. Larva olive greenish in color with fuscous speckles and paler below. It has two pointed dorsal tubercles on anal somite. Dorsal and lateral bands of black streaks and greenish white blotches found on back and sides.
European tree frogs are small; males range from in length, and females range from in length. They are slender, with long legs. Their dorsal skin is smooth, while their ventral skin is granular. Their dorsal skin can be green, gray, or tan depending on the temperature, humidity, or their mood.
The dorsal sepal is egg-shaped, long and wide, forming a hood over the column. There is a long, hair-like tip on the end of the dorsal sepal. The lateral sepals are long, wide and fused to each other along their sides. The petals are triangular, curved, long and wide.
The dorsal sepal is narrow egg- shaped, long and about wide. The lateral sepals are a similar length to the dorsal sepal but are about long and joined to each other. The petals spread widely and are about long and about wide. The labellum is long and only about wide.
Now they are protected and their numbers are increasing substantially. The endangered gaur are the heaviest and most powerful of all wild bovines. Males have a highly muscular body, with a distinctive dorsal ridge, forming a very powerful appearance. Females are substantially larger, and their dorsal ridge is less developed.
This is a medium-sized pitviper with a slender body and strong prehensile tail. Adults are usually long, with a maximum recorded length of . It has 21-23 dorsal scale rows at mid-body. The head and body usually have a greenish dorsal color, shading to yellow-greenish along the sides.
Females and immatures are a silvery grey, but show little sign of vertical bars on the flanks or a 'tilapia mark' at the base of the soft dorsal fin shown by most other tilapias. Mature males are dark pinkish with black heads, bellies, and conspicuously black dorsal, anal and pelvic fins.
Pristimantis ocreatus is a small species: based on four males and two females, males measure and females in snout–vent length. Dorsum and upper flanks are dark brown. Some individuals have a reddish-brown mid-dorsal stripe or broad dorsal band. Most individuals have pale orange spots along dorsolateral folds.
Males measure and females in snout–vent length. The coloration is variable; the dorsal ground color is light or dark brown, grayish brown, or orangish brown. Dorsal color patterns include dark chevrons, longitudinal dark lines, and sharply bicolor middorsum from the sides. The ventral surfaces are grayish, sometimes pale grayish yellow.
The abdomen is brown with a dark band across one abdominal segment and a dark dorsal mark on the adjacent segment. The larvae have been recorded on Jasminum, Adina, Coffea, Gardenia, Guettarda, Morinda, Pavetta, Randia, Tarema and Nephelium. They are green with a bluish white dorsal line and white dorsolateral ones.
Dorsal skin has small tubercles. Adults have golden tan coloration with black or brown markings, potentially joining into median or paired stripes. They can, however, change their color to brown, as well as change the intensity of the dorsal patterns. There are narrow, dark brown canthal and post-orbital stripes.
It grows to a length of and females are usually larger than males. The skin on the dorsal surface is smooth and bright green. The ventral surface is whitish and clearly demarcated from the dorsal surface by a beige line. A black stripe extends from the eye to the armpit.
The pedicel (botany) and ovary are long and white-pubescent. The flowers are pale cream, faintly flushed with pink, with a bright yellowish- green lip. The dorsal sepal is puberulous on both surfaces, elliptic-oblong, long and across, with 5 nerves. The lateral sepals are similar to the dorsal, but oblique.
The stripes which contribute to its common name are indistinct and located on the dark dorsal side. The ventral side is yellow with some dark spots. The dorsal scales, which are arranged in 19 rows at midbody, are smooth on the body, with some keeled scales in the anal region.
Dorsally black, with a white vertebral line, occupying one row plus two half rows of dorsal scales. Head white, with a black blotch covering the nasals and the upper head shields; neck entirely black. Ventrals and subcaudals, and four adjacent dorsal scale rows on each side, white. Snout very short.
The moth flies from June to July depending on the location. Larva yellowish grey, mottled with darker, especially in front; dorsal and subdorsal lines pale ochreous; a dorsal series of dark streaks; spiracles with black rings. The larvae feed on various grasses, including Dactylis glomerata, Poa nemoralis and Luzula species.
Ventral part of caudal peduncle covered with plates showing a highly reduced number of odontodes. Dorsal-fin origin slightly anterior to pelvic-fin origin. Dorsal fin short; when adpressed, far from reaching preadipose unpaired plate. Adipose fin roughly triangular, preceded by one, or two fused into one, median unpaired raised plate.
Slenderhead darters spawn between late April and early June. The darters exhibit sexual dimorphism with the males pigmentation darkening in April and peaking during spawning. The first dorsal fin becomes orange and the dorsal rays become outlined in yellow. Older and larger males are darker and able to attract more females.
The toes have discs slightly smaller than the finger ones; webbing is absent but the toes have slight lateral fringes. Dorsal coloration varies from lime green to yellowish green. Dorsal surfaces of the hands and the feet are purple with irregular orange markings. The ventrum is pale orange with red reticulations.
Their body is covered with cerata-like dorsal and lateral outgrowths, with finger-like branches. They have an attached cluster of gills. Their rounded head shows on each side of the mouth a tentacle, with tiny finger-like papillae. The sheath of the rhinophore stands high and resembles the dorsal processes.
The shaft is broad in dimension and connects via cartilaginous linkages to three lateral segments. The glans penis has a dorsal lobe elevated above a ventral rim. The rim has spiny fingerlike processes, but not the dorsal lobe. An rod shaped os clitoridis may be present, in front of the urethra.
In other words, light and dark can influence the colour changes of this kind of lizards. If exposed to light, the dorsal skin of the lizard becomes darker, and if exposed to darkness, it becomes lighter. Under constant darkness (i.e. in the subjective night), the lizards’ dorsal skin becomes the lightest.
This fish can grow up to a maximum length of up to . It is gray with 5 vertical black bands. The cadual fin of this fish is yellow. This fish has 13 dorsal spines, 13 to 14 dorsal soft rays, 2 anal spines, and 13 to 14 anal soft rays.
The snout short is bluntly rounded. Neither fingers nor toes have lateral fringes or webbing. The dorsal color varies considerably between individuals: the dorsum is tan to brown and gray, with dark brown markings; some individuals have a yellow or orange mid- dorsal line. An inter-orbital bar is present.
The Yaqui sucker's body is fusiform and somewhat elongated, with relatively large head and eyes. The lips can be distinguished in that they are less fleshy than other Arizona suckers. The high dorsal fin has twelve fin rays. Anal, pelvic, and dorsal fins are all particularly larger in males than females.
There are no suboculars, and the loreal is either very small or absent. There are 6 or 7 upper labials, the 3rd and 4th entering the eye, the last two very large. The dorsal scales are pointed and overlapping. The dorsal scales are arranged in 16 (or 14) rows at midbody.
Hilar mossy cells and CA3 Pyramidal cells are the main origins of hippocampal commissural fibers. They pass through hippocampal commissures to reach contralateral regions of hippocampus. Hippocampal commissures have dorsal and ventral segments. Dorsal commissural fibers consists mainly of entorhinal and presubicular fibers to or from the hippocampus and dentate gyrus.
Salarias fasciatus is a small fish, with maximum recorded size of about 14 cm. Body depth about 3.7 to 4.2 in length, head small, branched supraorbital and nuchal cirri. Lip margins smooth. No notch in dorsal fin, dorsal and anal fins attached to base of caudal fin by a membrane.
Early instars are greyish white and translucent. A transverse olive-brown band is present anteriorly, centrally and posteriorly. A double dorsal series of six transparent glossy humps are visible with a lens when the caterpillar reaches later instars. Late instars are pale bluish green with a narrow white dorsal band.
Ventrally it is yellowish, with small brown spots. The smooth dorsal scales are arranged in 33-43 rows. Ventrals 250-265; anal plate entire; subcaudals 70-80 also entire. On the dorsal surface of the head, the large frontal contacts the supraoculars; the remainder is covered by small irregular plates.
The rostral raphe nuclei, both the median raphe nucleus and particularly the dorsal raphe nucleus have long been implicated in depression. Some studies have suggested that the dorsal raphe may be decreased in size in people with depression and, paradoxically, an increased cell density in those who die by suicide.
In Helogenes, the dorsal fin base is short, the anal fin base is elongate, the dorsal and pectoral fins lack spines, the adipose fin is usually present, but is reduced or absent in one population of one species. Helogenes species grow to about 4.3-7.3 centimetres (1.7-2.9 in) SL.
The pectoral fin spine is serrated anteriorly and posteriorly. The dorsal fin spine is serrated posteriorly but not anteriorly.
The tibiae are constricted in their basal third, and bear conspicuous rows of erect setae on their dorsal side.
In the same reconstruction, the smooth zone was considered an imprint of the soft tissue beneath the dorsal carapace.
Dorsal fin has straight rear margins.Compagno, Leonard. "Sharks of the world." Shark Research Center Iziko-Museums of Cape Town.
They are translucent yellowish green with a darker dorsal line and black or brown spots and a black head.
There are usually 15 rows of dorsal scales at midbody, though there are rare specimens that have 17 rows.
The giant wall gecko reaches maximum 15.5 cm snout–vent length and its dorsal skin has a grey color.
The smooth dorsal scales are arranged in 23 to 25 rows at midbody and the anal plate is undivided.
Thorax tuftless. Abdomen with small dorsal tufts on proximal segments. Mid tibia very rarely spined. Wings with crenulate cilia.
Abdomen tuftless, where the dorsal part of proximal segments clothed with coarse hair. Tibia spineless. Forewings with crenulate cilia.
The anal fin had a red base with the same vivid, deep blue as the dorsal, in the margins.
The shape of the nose is sharp, and the eyes are large. The dorsal surface is a cream colour.
The second dorsal and caudal fins have several narrow black bands; other fins are clear or yellow in color.
The limbs are slender. Webbing is absent. Skin is smooth. The dorsal ground color is grayish brown to leaden.
The tympanum is round and has its postero-dorsal part concealed. Both fingers and toes lack fringes and webbing.
Some individuals have dark blotches on the body or dorsal fin. Maximum recorded length if 76 cm (29.6 in).
Megaloplax is a genus based on an incomplete median dorsal plate from Frasnian-aged deposits in the Ural Mountains.
It is inserted into the dorsal surface of the base of the second metacarpal bone, on its radial side.
The dorsal fin has 65–79 soft rays, the pectoral fin 10 to 11, and the ventral fin six.
The fins are all uniformly greyish, with some presence of dots on the rays of the second dorsal fin.
Yus Ramos, R. et al, Por la Dorsal Bética. Centro de Desarrollo Rural (CEDER) de la Axarquía, Málaga 2007.
Serration is present on the last ray of the dorsal and anal fins, and the caudal fin is forked.
Fusuconcharium is a genus of lobopodian known only from its biomineralized dorsal plates, which somewhat resemble those of Microdictyon.
The air-cells are unusually large and extend over a great part of the dorsal surface of the statoblast.
The name-giving feature of the yellow-spotted rock hyrax is a dorsal gland that is located on the lower back beneath a raised skin patch about 1.5 cm long and is surrounded by erectile hairs. However, not all Heterohyrax species have a dorsal gland. The secretions of the gland stain a dorsal spot of reddish-ochre to a dirty white coloration, but most commonly appears yellow. The gland is associated with sexual arousal and also plays a role in maternal recognition by young.
The smelt- whitings are all very similar in their body morphology and external anatomy, with the Soringa whiting no exception. The species has a slightly compressed, elongate body tapering toward the terminal mouth, with a concave-up dorsal profile and a straight ventral profile. The maximum reported size for the Soringa whiting is 15 cm. The fin anatomy is highly useful for identification purposes, with the species having 11 spines in the first dorsal fin, with one spine and 21 soft rays on the second dorsal fin.
Because oxygen is delivered directly to tissues via tracheoles, the circulatory system is not used to carry oxygen, and is therefore greatly reduced. The insect circulatory system is open; it has no veins or arteries, and instead consists of little more than a single, perforated dorsal tube that pulses peristaltically. This dorsal blood vessel (element 14) is divided into two sections: the heart and aorta. The dorsal blood vessel circulates the hemolymph, arthropods' fluid analog of blood, from the rear of the body cavity forward.
O. deuvei differs from other known species of its group (the O. taeniatus group) by the combination of 12–15 maxillary teeth, 17 dorsal scale rows at midbody, approximately seven supralabials, the absence of dorsal and tail blotches, and the presence of a single vertebral black stripe, which is usually orange or red. O. deuvei is most similar to O. barroni, but differs from the latter by having more maxillary teeth and its absence of dorsal and tail marks. (Oligodon deuvei, new species, p. 28).
Originating below the fourth pair of gill slits, the pectoral fins are short, broad, and falcate (sickle-shaped) with pointed tips. The first dorsal fin is tall and falcate with a distinctively long free rear tip, and is positioned just behind the pectoral fin bases. The second dorsal fin is large and tall without a notably elongated free rear tip, and is positioned over or slightly behind the anal fin. Usually there is no midline ridge between the dorsal fins, and when present the ridge is slight.
Dermatolepis dermatolepis has a body which is at least twice as deep as its standard length which is at its deepest at the origin of the dorsal fin and laterally compressed. The dorsal profile of head is steep and the eye has a diameter which is less than the length of the snout. The caudal fin is rounded and the pectoral fins are short. The dorsal fin contains 11 spines and 18-20 soft rays while the anal fin has 3 spines and 9 soft rays.
Kyhosus azureus has a moderately deep, compressed, oval body with a small head which has a pointed snout and a small, thickly lipped mouth. There is a continuous dorsal fin which contains 11 spines, which can be folded down into a scaly furrow, and 9 soft rays. The spiny part of the dorsal fin is longer than thesoft-rayed part. The anal fin has 3 spine and 10 The body is covered in thick, rough scales soft rays which are longer than those in the dorsal fin.
The dorsal sepal is erect, long, about wide, linear to narrow lance-shaped near the base then narrowing to about . The lower part of the dorsal sepal has a reddish stripe in its centre and ends with a thick, dark reddish-purple glandular tip. The lateral sepals are long, about wide, linear to lance-shaped and have a glandular end like the one on the dorsal sepal. The petals are long, about wide, linear to lance shaped with a red line along their centre.

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