A scaleless black dragonfish, a bioluminescent deep sea fish showing its light emitting organs, large jaws, and needle-like teeth.
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Eustomias schmidti, more commonly known as the scaleless dragonfish, is one of the many species included in the family of Stomiidae. Despite its small size, the scaleless dragonfish is a dangerous predator in the deep oceanic waters that uses its self-generated light to attract its prey.Knight, J. D. "Deep Sea Dragonfish." seasky.org. Np., 1999. Web.
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In addition, there are many small photophores covering most of the body and head. The scaleless dragonfish has two pectoral finrays (bounded closely in a black membrane) and seven pelvic finrays. At its first maturity level, the females reach whereas the males are slightly smaller and reach . Overall, a scaleless dragonfish can reach to be during its lifetime.
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It has no scales or hexagonal areas on its body. The scaleless fish's skin is usually black, sometimes iridescent silver, bronze, or green.
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Schistura lingyunensis is a troblobitic species of stone loach found in Shadong Cave, Lingyun County in Guangxi. It is scaleless and lacks pigmentation with degenerated eyes.
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Hindwings with vein 6 absent. In male, head smoky black, and thorax yellowish brown. Abdomen ochreous, where the second segment is almost scaleless and shoring dark cuticle. Forewing uniformly yellowish brown.
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Randall, J. E. (2005). Reef and Shore Fishes of the South Pacific. University of Hawai'i Press. Morays secrete a protective mucus over their smooth, scaleless skin, which in some species contains a toxin.
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The Acanthoclininae is a subfamily of ray-finned fishes, one of two in the family Plesiopidae. They are characterised by the head being scaleless or nearly scaleless, a dorsal fin which has 17–26 spines and 2–6 soft rays, an anal fin having 7–16 spines and 2–6 soft rays while the pelvic fin has one spine and two soft rays. There are between one and four lateral lines, the number of vertebrae is between 26 and 35. They grow to a maximum length about .
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Chiloglanis is a genus of upside-down catfishes native to Africa. These species have modified lips and barbels that form a suckermouth. They also have a naked (scaleless) body. Sexual dimorphism has been reported in Chiloglanis.
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The fishes in the genus Helcogramma are characterised by the possession of a continuous lateral line which bends down towards the operculum, this lateral line comprises 7–39 tubular pored scales. There are three spines in the first dorsal fin and the anal fin has one spine, the pelvic fin has a single spine and two rays. The head is scaleless and normally the bases of the dorsal and anal fins have a scaleless strip. There are five bones in the joint between the caudal fin and the vertebrae, the hypurals.
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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.
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They prefer sandy environments, and typically have body colours that help to camouflage them in such environments. The larvae of lizardfishes are free-swimming. They are distinguished by the presence of black blotches in their guts, clearly visible through their transparent, scaleless skin.
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Females grow considerably larger than males, but otherwise the sexes are similar. It is the largest scaled freshwater fish in the Río de la Plata Basin (the only fish that can surpass it in size are certain river stingrays and catfish; both scaleless).
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Regalecus russelii, or Russell's oarfish, is a species of oarfish in the family Regalecidae. It is a broadly-distributed marine fish, found in waters in the bathypelagic zone. R. russelii is a scaleless, elongate and ribbonlike fish, growing up to 8 meters in length.
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The Clarence galaxias is scaleless and has a dark brown back with brown bars and bands extending down its sides, while the belly is a lighter yellow-cream color. Adults reach a body length of 12.5–14 cm and a maximum weight of 20 g.
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This species has a maximum length of . The Mud Minnow has an elongated scaleless body, a white belly and a grey-brown back. A distinctive broad brown stripe starts from behind the eye and ends tailfins base. The fish has a one-year life-cycle.
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Combtooth blennies are small, scaleless fish that are characterized by comb-like teeth in the jaw.Nelson, J. S., Grande, T. C., & Wilson, M. V. H. (2016, March 28). Fishes of the World, 5th Edition. J. S. Nelson; T. C. Grande; M. V. H. Wilson (2016).
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Pearlfishes are slender, distinguished by having dorsal fin rays that are shorter than their anal fin rays. They have translucent, scaleless bodies reminiscent of eels. The largest pearlfish are about in length. They reproduce by laying oval-shaped eggs, about 1 mm in length.
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Arcona are scaleless, reptilian humanoids. They have flat, anvil-shaped heads, with clear, marble-like eyes, and skin tone that ranges from mahogany to ebony. The native planet of the Arcona, Cona, is always hot, and has very little water. The atmosphere is filled with ammonia vapor.
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The scaleless skin of P. nkunga is coated in mucus, and its mouth is surrounded by four pairs of sensory barbels. The spines of the serrated dorsal fin, which can lock into an erect position, are covered in toxic mucus that can be poisonous to humans.
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The color is silvery underneath, and light brown above with dark brown streaks flecked with spots. Tall body depth, though not as tall as the Pacific sandfish (Trichodon trichodon). Head and trunk are scaleless. A large mouth, oblique and turned upwards, is lined with rows of fine teeth.
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One small dorsal fin is close to the sharply pointed, mostly scaleless head. The tail fin is greatly reduced, with the anal fin being the largest fin. Their pectoral fins are slender and greatly elongated. Their mouths are somewhat large, with the lower jaw shorter than the upper jaw.
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Lancetfishes are large oceanic predatory fishes in the genus Alepisaurus ("scaleless lizard") in the monotypic family Alepisauridae. Lancetfishes grow up to in length. Very little is known about their biology, though they are widely distributed in all oceans, except the polar seas. Specimens have been recorded as far north as Greenland.
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The narrownecked oceanic eel, Derichthys serpentinus, is a longneck eel, the only species in the genus Derichthys, found in all oceans in depths between 500 and 2,000 m. Their length is up to 40 cm. The skin is scaleless and red- brown. It lives on the bottom at great depths.
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The Muraenesocidae, or pike congers, are a small family of marine eels found worldwide in tropical and subtropical seas. Some species are known to enter brackish water. Pike congers have cylindrical bodies, scaleless skin, narrow heads with large eyes, and strong teeth. Their dorsal fins start above the well-developed pectoral fins.
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Colouration in Lithoxus species is typically slate gray to tan with a few lighter markings on the body; there are occasionally bands in the pectoral and caudal fins. The ventral surface ranges from white to slightly lighter than the sides. The abdomen is naked (scaleless and unplated). The caudal fin is slightly forked.
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Polypodium virginianum is a small rhizomatous fern with narrow leaves long and wide borne on smooth, scaleless petioles . Leaves are evergreen, oblong and pinnatifid with acuminate tips. Large, circular sori are prominently featured on the underside of fertile fronds in late summer and autumn. Sporangia are intermixed with long brown glandular hairs.
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At the tip of each spine are several trailing filaments, hence the family name Cirrhitidae, from the Latin cirrus meaning "fringe". Their tail fins are rounded and truncated, and their pectoral fins are enlarged and scaleless. Their scales may be cycloid or ctenoid. Most hawkfishes are small, from about 7–15 cm in length.
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It is believed they benefit from loss of reliance on haemoglobin-containing erythrocytes for oxygen transport by having less viscous, more easily pumped blood. They compensate for this loss by having lower metabolic rates, larger gills, scaleless skin that can contribute more to gas exchange, wider capillaries and significantly increased blood volume and cardiac output.
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The fish, which is scaleless, may be prepared whole as braised or grilled fish, and has a mucilaginous consistency. It is also dried to make stockfish; salted, dried, and made into himono; and cured in miso as misozuke. It is the main ingredient of the fish sauce called shottsuru. The egg masses are known as burikko.
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They lack a swim bladder. The lateral line of clingfish is well developed, but may not extend to the posterior parts of the body. The skin of clingfishes is smooth and scaleless, with a thick layer of protective mucus. In at least Diademichthys lineatus and Lepadichthys frenatus, the mucus production increases if the fish is disturbed.
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The bullrout has a large head, and seven spines on the operculum. It has a big mouth with a protruding lower jaw. The spinous dorsal fin is slightly concave posteriorly and the last soft dorsal ray is attached by a membrane to the caudal peduncle. The body is covered with small scales, but the head is scaleless.
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The star pearlfish is a long, slim, silvery fish growing to a maximum length of . It has dark-pigmented spots, known as melanophores, scattered irregularly across its translucent, scaleless body. The dorsal and anal fins run the length of the body, with the dorsal fin rays being shorter than those of the anal fin. No pelvic fins are present.
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Most colonies are long, thin, transparent floaters living in the pelagic zone. Like other hydrozoans, some siphonophores emit light to attract and attack prey. While many sea animals produce blue and green bioluminescence, a siphonophore was only the second life form found to produce a red light (the first one being the scaleless dragonfish Chirostomias pliopterus).
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The Neosho madtom (Noturus placidus) is a small North American freshwater catfish. It has been listed as a near-threatened species in the United States since 1996. The Neosho madtom has features characteristic of all North American catfish, including scaleless skin and a relatively large head with sensory barbels. Adults average less than 3 in (8 cm) in length.
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Kona The rockmover wrasse is a colorful fish, in length. It has an oblong, laterally compressed body and a wedge-shaped head. Its head is scaleless except for two scales on the upper part of the gill coverings and an almost vertical row of small scales behind each eye. Juveniles and adults have markedly different appearances.
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The third is tiny and round, located between the eye and the large red photophore. Several rows and clusters of blue photophores are present on the sides and belly. In addition, there are small photophores and accessory areas of white luminous tissue scattered over the head and body. The skin is thin and scaleless; the coloration is black.
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The Patagonian toothfish and the Antarctic toothfish are markedly similar in appearance, but can be identified via several morphological features. The Patagonian toothfish has a characteristic scaleless patch between the eyes and a longer visible lateral line.Fischer W. and Hureau J.C. (1985). FAO Species identification sheets for fishery purposes. Southern Ocean: Fishing Areas 48, 58, and 88 (CCAMLR Convention Area) 2, 233-470.
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Toadfish are usually scaleless, with eyes set high on large heads. Their mouths are also large, with both a maxilla and premaxilla, and often decorated with barbels and skin flaps. They are generally drab in colour, although those living on coral reefs may have brighter patterns. They range in size from length in Thlassophryne megalops, to in the Pacuma toadfish.
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In response to oxygen levels 95% lower than normoxic conditions, apoptosis of ILCM increases lamellar surface area by up to 60% after just 24 hours. However, this comes at a significant osmoregulatory cost, reducing sodium and chloride levels in the cytoplasm by over 10%. The morphological response to hypoxia by scaleless carp is the fastest respiratory surface remodelling reported in vertebrates thus far.
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The scaleless killifish or Hazar toothcarp (Aphanius asquamatus) is a species of freshwater fish in the family Cyprinodontidae. It is endemic to Lake Hazar in Turkey. It is a pelagic species that comes to shore in spring–early summer to spawn. It is threatened by the falling water levels of Lake Hazar due to water abstraction and reduced rainfall due to climate change.
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Ogcocephalus porrectus, along with other members of the Ogcocephalidae, only possess two bony elements in the illicium, in contrast to other sub-orders in the Lophiiformes. O. porrectus does not possess the posterior dorsal spine, and the anterior spine is very short and housed within the esca. The illicium and esca are contained within an illicial cavity covered in a scaleless skin.
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This is a transparent freshwater catfish with two long barbels. Standard lengths may range up to , but usually only reach around in total length. They are transparent because, like all catfish, they are scaleless, and catfish within the genus Kryptopterus lack body pigment. Most of their organs are located near the head; with a magnifying glass, their heart can be seen beating.
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Mudfishes are small, growing to a maximum of . They have a tubular, highly flexible, scaleless body with rounded fins, well-developed flanges on the caudal peduncle, tubular nostrils, small or absent pelvic fins, and mottled brown colouration. Adults are active at night and are usually found in the benthic zone, while juveniles are active during the day and are found in open water.
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The body is scaleless and the skin is covered with easily abraded, silvery guanine. In the streamer fish (Agrostichthys parkeri), the skin is clad with hard tubercles. All species lack gas bladders and the number of gill rakers is variable. Oarfish coloration is also variable; the flanks are commonly covered with irregular bluish to blackish streaks, black dots, and squiggles.
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These "little dragons" are generally very colorful and possess cryptic patterns. Their bodies are elongated and scaleless. A large preopercular spine is characteristic of this fish, and has been reported to be venomous in some species. All fins are large, showy and elongated; the first high dorsal fin usually has four spines; in males, the first of these spines may be further adorned with filamentous extensions.
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In 2005, a species was discovered, the striated frogfish, that mimics a sea urchin, while the sargassumfish is coloured to blend in with the surrounding sargassum. Some frogfish are covered with algae or hydrozoa. Their camouflage can be so perfect that sea slugs have been known to crawl over the fish without recognizing them. For the scaleless and unprotected frogfish, camouflage is an important defense against predators.
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The body of L. fabricii is smooth and completely scaleless. Like its common name suggests, its skin is somewhat gelatinous in texture and tears easily. L. fabricii is lighter colored when young, with the pigment cells (melanophores) visible as brownish speckles just under the skin. As the fish matures, the number of pigment cells increases until the fish becomes almost entirely black in adulthood.
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The cabezon is a scaleless fish with a broad bony support extending from the eye across the cheek just under the skin. It has 11 spines on the dorsal fin. The cabezon also has a stout spine before the eye, an anal fin of soft rays, and a fleshy flap on the middle of the snout. A pair of longer flaps are just behind the eyes.
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Clupeids are mostly marine forage fish, although a few species are found in fresh water. No species has scales on the head, and some are entirely scaleless. The lateral line is short or absent, and the teeth are unusually small where they are present at all. Clupeids typically feed on plankton, and range from 2 to 75 cm (0.8 to 30 in.) in length.
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Triplophysa marmorata is a species of ray-finned fish found in Asia.Bashir, A., Bisht, B.S., Mir, J.I., Kumar, R. & Patiyal, R.S. (2016): Morphological, molecular characterization and taxonomic status of Triplophysa marmorata and Triplophysa kashmirensis (Cypriniformes: Nemacheilidae) from Kashmir valley, India. Revista de Biología Tropical, 64 (2): 473-482. It's a scaleless inland fish that is endemic of wetlands like the Wular Lake in Jammu and Kashmir, India.
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Galaxias is a genus of small, highly successful freshwater fish in the family Galaxiidae. They are typically found at temperate latitudes across the Southern Hemisphere and are frequently referred to as galaxiids. Galaxiids are scaleless and somewhat tubular in body form, ranging from very slender to quite bulky. They are somewhat torpedo-shaped, with the dorsal and anal fins positioned close to the tail.
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The Caribbean hagfish (Myxine mcmillanae) is a species of hagfish. It is a scaleless, eel-like fish found in Caribbean waters that feeds off material from the surface that drifts down. It is rarely seen as it lives in very deep water from 2,300-4,950 ft (700-1,500 m) and likes to burrow into the mud. Their bodies are grey with contrasting white heads.
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Saccopharynx is a genus of deep-sea eels with large mouths, distensible stomachs and long, scaleless bodies. Commonly, these fish are called gulpers or gulper eels. It is the only genus in the family Saccopharyngidae, and is part of the derived lineage of the "saccopharyngiforms," which includes other mid-water eel species. The name is from Latin saccus meaning "sack" and Greek φάρυγξ, pharynx.
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The blacknose shiner is a soft-rayed species up to 9.8 cm with toothless jaws, but gill arches that contain one or two rows of distinctive teeth. It has cycloid scales, but a scaleless head. There are 19 caudal rays, and the dorsal and anal fins are very short. The anal fin is closer to the middle of the body than to the caudal fin.
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With highly compressed bodies, some may be so elongated as to appear eel-like; chaenopsids are scaleless and lack lateral lines. Their heads are rough and may be armed with spines. There may be 17 to 28 spines in the dorsal fin, with two in the anal fin. The habit of taking up home in abandoned worm tubes has earned some species in this family the name "tube- blenny".
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The walking catfish has an elongated body shape and reaches almost in length and in weight. Often covered laterally in small white spots, the body is mainly coloured a gray or grayish brown. This catfish has long-based dorsal and anal fins, as well as several pairs of sensory barbels. The skin is scaleless, but covered with mucus, which protects the fish when it is out of water.
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Snailfish are scaleless with a thin, loose gelatinous skin; some species, such as Acantholiparis opercularis have prickly spines, as well. Their teeth are small and simple with blunt cusps. The deep-sea species have prominent, well-developed sensory pores on the head, part of the animals' lateral line system. The pectoral fins are large and provide the snailfish with its primary means of locomotion although they are fragile.
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The bighead carp (Hypophthalmichthys nobilis) is a species of freshwater fish, one of several Asian carps. It is one of the most intensively exploited fishes in aquaculture, with an annual worldwide production of over three million tonnes in 2013, principally from China. The bighead carp has a large, scaleless head, a large mouth, and eyes located very low on the head. Adults usually have a mottled silver-gray coloration.
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The curved and straight sections intersect below the 10th to 12th soft rays of the second dorsal fin. The breast is devoid of scales, with the scaleless area extending to the origin of the pelvic fins and up to the base of the pectoral fins. Both jaws have bands of villiform teeth, which are widest anteriorly. It has a total of 20 to 27 gill rakers and 24 vertebrae.
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The anal fin has two spines followed by a single spine and 18 or 19 soft rays. The pectoral fin is long and curved, extending beyond the junction of the straight and curved sections of the lateral line. Anterior to the caudal fin are two oblate keels on each side of the line of scutes. The body appears to be scaleless, but on closer inspection has minute, deeply embedded scales.
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Chirostomias pliopterus is a species of barbeled dragonfish found in the Atlantic Ocean. This species grows to a length of SL. This species is the only described member of its genus. This scaleless dragonfish was also the first discovered lifeform to emit a red light, with the second being a siphonophore of the genus Erenna. Later, related Stomiid genera Aristostomias, Malacosteus and Pachystomias were also found to emit red light.
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The anal fin has two spines followed by a single spine and 15 or 16 soft rays. The pectoral fin is long and curved, extending beyond the junction of the straight and curved sections of the lateral line. The body appears to be scaleless, but on closer inspection has minute, deeply embedded scales. The lateral line is strongly curved anteriorly, with a section of 6 to 11 scutes toward the tail.
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P. baileyi grows to around SL and can be identified by sparse, or dense, coverage of epidermal outgrowths or cirri on the head and body. The cirri tend to be more profuse in the juvenile state, becoming reduced or non-existent at higher ages. The abdomen is usually golden or orange, with no other markings. Like other pufferfish P. baileyi is scaleless, and is therefore extremely sensitive to water quality.
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Roanoke bass have a robust, compressed body with a large, terminal mouth and a nearly scaleless cheek. The anal fin has a dark margin , the pectoral fin is rounded and the caudal fin is emnarginate. The eye is large and red contrasting with the dark brown or olive colour of the body. The Roanoke bass closely resembles the rock bass (Ambloplites rupestris) and the two are easily and often confused notwithstanding different colouring.
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The generic name is derived from Greek and is a compound noun consisting of the word Koryfó rendered as Corypho meaning "top" and blennius, which means "blenny" and is derived from a Greek word for "mucus", referring to its scaleless body. The specific name, galerita means "a cape" or "a hood" and refers to the crest between the eyes. The common name, Montagu's blenny, honours the English naturalist George Montagu (1753-1815).
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The lateral line begins above and behind the eye then, descending to the lower third of the body, extends to the caudal tip. The skin of R. glesne is scaleless but covered with tubercles. The skin color is silver with streaks, spots or splotches of black or dark gray, and a bluish or brownish tinge on the head. Its fins, including its long dorsal fin and crest, are red, again probably resulting from its diet.
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The breast is scaleless ventrally until the origin of pelvic fins, often with a small patch of prepelvic scales. Laterally, this naked area of the breast is separated from the naked base of the pectoral fins by a moderate band of scales. The lips are notably fleshy in adults, with both jaws containing narrow bands of villiform teeth which become obsolescent with age. There are 28 to 32 gill rakers in total and 24 vertebrae.
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In the past, their scaleless skin had been widely thought to help absorb oxygen. However, current analysis has shown that the amount of oxygen absorbed by the skin is much less than that absorbed through the gills. The little extra oxygen absorbed by the skin may play a part in supplementing the oxygen supply to the heart which receives venous blood from the skin and body before pumping it to the gills.
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Leporacanthicus species have large teeth in the upper jaw; usually there are only two teeth on each premaxilla, the inner teeth very long. Species of Leporacanthicus are medium-sized loricariids with a narrow, pointed head, round lower lip, and fleshy tentacles on the upper lip. The colour pattern is generally dark gray to black with white to golden spots or a light gray with medium-sized black spots. The abdomen is naked (scaleless and unplated).
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The skin of the fish appears scaleless, but has minute, embedded scales scattered on the body. The lateral line has a strong and moderately long arch dorsally, with its posterior section having 12 to 30 scutes. The juveniles are distinctive due to their 'threadfin' appearance of having trailing anal and dorsal fin filaments which recede with age. During maturation, the species also becomes more elongate and more like that of other genera of jacks.
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Similar to other clingfishes, Kopua have small bodies with maximum lengths of 7 cm. There is no observable sexual dimorphism in the recognized species. All clingfish species have naked skin (scaleless), single dorsal and anal fins, a depressed head, as well as a pair of fin girdles that form the ventral sucking disk. Fish that are part of the genus Kopua can be identified by specific shared characteristics, although each species does have varying measurements of each characteristic.
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The pelvic fin has 4-9 rays, and the stomiiformes possess 5-24 branchiostegal rays. Their scales are cycloid, delicate and easily sloughed off; some are scaleless. The coloration is typically dark brown or black; a few (mostly Gonostomatoidei) are silver, and photophores (light-producing organs) are common in this order. The teeth of stomiiformes are often transparent and non-reflective so that prey will be unlikely to see them in the light generated by bioluminescence.
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Milyeringa veritas (commonly known as the blind gudgeon) is a species of fish in the family Milyeringidae. It is endemic to groundwater and anchialine systems in caves in the Cape Range, Australia. Like other cave-adapted fish, the blind gudgeon is entirely blind and lacks pigmentation, using sensory papillae on its head and body to move around and find food. It has a reduced number of scales on its body and the head is almost scaleless.
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Callionymus fasciatus, the banded dragonet, is a species of dragonet native to the Mediterranean Sea from the Gulf of Genoa to the western Aegean Sea. Also known from the southern and eastern Black Sea. It prefers sandy substrates where its diet consists of benthic invertebrates. Its body is scaleless, elongated and tapers posteriorly, it has a triangular head with a short snout which is shorter than the diameter of the eye and a terminal, protractile mouth.
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Connoisseurs believe the liver is also excellent. The fish is covered with a soft, scaleless, elastic skin, under which another thin edible membrane covers the flesh. Though much less so than in cod, one can sometimes find parasitic worms in the flesh of anglerfish, whose opacity can make them easier to find. Worms are usually found between the skin and outer portion of the flesh ranging in size from a few millimeters to over one inch.
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The common name of the family "banjo catfishes" refers to their overall body shape, with a depressed head and slender caudal peduncle, that in some species gives the appearance of a banjo. Banjo catfishes lack an adipose fin. Most species lack the dorsal spine-locking mechanism. Though their bodies are scaleless, their skin is completely keratinized and is covered by large, unculiferous tubercles arranged in longitudinal rows; the entire outer layer of skin may be shed.
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The breast is scaleless, reaching ventrally to the pelvic fin origin, while laterally the naked breast is separated from the naked base of the pectoral fins by a band of scales. Both jaws contain bands of small teeth, with the bands becoming wider anteriorly. The upper jaw also hosts an irregular series of moderately large outer teeth, with the largest specimens showing this in the lower jaw as well. There are 26 to 30 gill rakers and 24 vertebrae.
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The body is scaleless and the lateral line extends to the anal fin. The lip is thick and has an irregular outline and there are three pairs of barbels around the mouth, one maxillio-mandibular pair and two rostral pairs. The body colour is generally a light yellowish brown with an irregular pattern of grey brown mottles and a varying number of diffuse bars or blotches which can fuse towards the caudal fin to for vertical stripes.
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The roughhead grenadier can reach a length of one metre (yard). The head occupies about one quarter of the total length of the fish, it has a slender body and long tapering tail. There are some bony spiny scutes or scales on the upper side of the head but the lower side is scaleless. The snout is pointed and the small mouth is set far back on the lower side of the head with a short barbel underneath.
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The bludger is classified within the genus Carangoides, a group of fish commonly known as jacks and trevallies. Carangoides falls into the jack and horse mackerel family Carangidae, the Carangidae are part of the order Carangiformes. The species was first scientifically described by the famed French naturalist Georges Cuvier in 1833 based on the holotype specimen taken in the Seychelles. Cuvier named his species Caranx gymnostethus, with the specific epithet meaning 'naked breast' in reference to its scaleless breast.
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The lateral line has a gentle anterior arch which is slightly longer than the straight section of the lateral line, with the intersection below the sixteenth to twentieth soft ray of the dorsal fin. The curved section contains 78 to 80 scales while the straight section consists of 15 to 19 scales and 21 to 27 scutes. The breast is scaleless until the origin of the pelvic fins and up to the origin of the pectoral fins.
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Pacific sandfish are small, reaching a maximum length of 12 inches (30.5 cm) and a weight of 12 oz (350 g). They have a long, slender body, with a silvery belly and a darker top side with black spots. The fish's fins and tail are long and thin, with a scaleless body. The Pacific sandfish is found over muddy and sandy bottoms to depths of 1,230 feet (375 m). Females lay a clutch of about 1000 eggs during the spawning months in winter.
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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.
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Typical of the Stephanoberyciformes, the melamphid body is robust, oblong, subcylindrical, and slightly compressed laterally. The head is large and scaleless, with its profile either bluntly rounded or with a sharp frontal angle; it is conspicuous for its prominent ridges, which are covered by thin skin. The head is also cavernous, being riddled by muciferous canals--similar structures are found in the beryciform slimehead (Trachichthyidae) and fangtooth (Anoplogastridae) families. Sharp spines and serrations may further adorn the head in some species.
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Muraena is a genus of twelve species of large eels in the family Muraenidae. This genus is common in the Mediterranean, and is abundantly represented in tropical and subtropical seas, especially in rocky parts or on coral reefs. In the majority, a long fin runs from the head along the back, round the tail to the vent, but all are destitute of pectoral and ventral fins. The skin is scaleless and smooth, in many species ornamented with varied and bright colours.
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When the illicium is retracted the scaleless skin folds in an accordion-like shape, which allows for the forward and downward movement of the esca upon protrusion. Rosy-lipped batfish are dorsoventrally flattened, slightly concave anterior-laterally with a depressed head but well-elevated cranium in relation to the discoid body. The sides of the caudal region are slightly convex so that a cross-section of the region is triangular. They possess well-developed conical, stiff scales that overlap very little.
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Illustration of a hammerjaw The large head is dominated by a massive, truncated lower jaw and large, high-set eyes. The lower jaw has a dark, almost black distal end, "chin". The lower jaw possesses at least one pair of oversized, transparent, and dagger-like teeth; the palatines possess 1-4 pairs of slightly smaller teeth. The body itself is scaleless and laterally compressed; it is covered in iridescent, silvery-gray guanine with the dark peritoneum peeking through in places.
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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.
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Fish of this genus have scaleless skin, three pairs of barbels (one maxillary and two mandibular), and small eyes located lateroventrally in a position about mid- length of the head. The body is laterally compressed, bearing a long-based anal fin that runs from the anus to the anterior margin of the caudal peduncle. The dorsal, pectoral, and pelvic fins have a narrow base and lack spines. The posterior margin of the caudal fin is either deeply forked or emarginate, depending on the species.
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Like other oneirodids, B. idiomorpha is a small, globular-bodied fish with a large head and jaws, and a bioluminescent lure (esca) on a stalk (illicium) attached to the head. The skin is scaleless and covers the base of the caudal fin. There are numerous small, rounded, darkly pigmented papillae on the head, body, and tail, associated with the lateral line system. The fish is dark brown to black in color, except for the clear tips of the papillae and the end of the esca.
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There are large flat spines on each side of the body at the base of the dorsal and anal fins. The scaleless body is a uniform silver, so bright as to be almost mirror-like, with an indistinct dark patch in the middle of each flank. In the month-long NORFANZ Expedition of 2003 which was examining the biodiversity of the seamounts and slopes of the Norfolk Ridge, 117 specimens averaging 1 kg (2.2 lb), were collected from four locations.NORFANZ Voyage Retrieved 2011-10-29.
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These are lost in adults, with the lobes becoming shorter than the head. The pectoral fins are long and falcate, not quite reaching the intersection of the arched and straight sections of the lateral line. The lateral line is moderately curved anteriorly, with this section up to twice as long as the straight section, which has between 20 and 37 weak scutes present. The breast of the longnose trevally is scaleless, extending up to behind the pelvic fin origin and laterally to the pectoral fin base.
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The entire chest from underneath the pectoral fins to the base of the pelvic fins is scaleless. There are two separate dorsal fins, the first with eight spines and the second with a single spine followed by 19 to 22 soft rays. The anal fin has two detached spines before the major part of the anal fin, which consists of one spine and 17 or 18 soft rays. The pectoral and pelvic fins are both quite long, with the latter extending almost to the anal fin origin.
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Other records in the late 20th century include one off Galicia at in September 1977 reported by a whaling company and another one seen off the Iberian Peninsula. The best areas to see the larger cetaceans are in the deep waters beyond the continental shelf, particularly over the Santander Canyon and Torrelavega Canyon in the south of the Bay. The alga Colpomenia peregrina was introduced and first noticed in 1906 by oyster fishermen in the Bay of Biscay. Grammatostomias flagellibarba (scaleless dragonfish) are native to these waters.
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The color is bright red on the body and fins; many with black and gray mottling on back and sides. On fish shorter than the mottling is much more apparent and the fins are often edged with black. The yelloweye and canary rockfishes are similar in appearance to the vermilion, but the bottom of their lower jaws is scaleless and feels smooth to the touch. The vermilion rockfish has scales on the bottom of the lower jaw which make it rough to the touch.
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Close-up of the heads of Asian swamp eels from Mindanao, Philippines The Asian swamp eel has a scaleless, anguilliform (snake-like) body that grows to a meter or less, typically 25 to 40 cm as an adult. As a swamp eel, it has a tapering tail and blunt snout, and lacks pectoral and pelvic fins. The dorsal, anal, and caudal fins are rudimentary, with the caudal fin often absent. These fins serve to protect the swamp eel against rolling, and assist in sudden turns and stops.
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Western rat snakes are popular as pets. Their size, calm temperament, and ease of care contribute to this popularity and they also occur in many mutations such as leucistic, albino, and scaleless. They enjoy hiding and burrowing which is usually accommodated with a loose substrate (such as aspen wood shavings or newspaper) and one or more hide boxes. Captive rat snakes are generally fed killed or stunned mice because captive-bred mice reduce the risk of exposing the snake to pathogens or live prey-induced injuries.
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Yunnanilus discoloris is so named because of the sexual dimorphism this species shows. The specific name discoloris means differently cloured, it refers to the sexually dimorphic colour pattern. The males have a black longitudinal stripe on both flanks with a light blackish stripe of spots along its back while the female shows black spotting and blotching on both the back and the flanks. It is a dwarf species which has a scaleless body and the origin of the dorsal fin is in halfway along the body.
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A striated frogfish, with upturned mouth, very distinct spinules, and esca in the form of a white worm A frogfish in Mactan, Philippines Frogfishes have a stocky appearance, atypical of fish. Ranging from long, their plump, high-backed, unstreamlined body is scaleless and bare, often covered with bumpy, bifurcated spinules. Their short bodies have between 18 and 23 vertebrae and their mouths are upward-pointed with palatal teeth. They are often brightly coloured, white, yellow, red, green, or black or spotted in several colours to blend in with their coral surroundings.
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The vadigo, Campogramma glaycos (also known as the big-toothed pompano, zippered pompano, lexa and lexola), is a species of medium sized coastal marine fish in the jack family, Carangidae. The species is distributed throughout the eastern Atlantic Ocean from the British Isles in the north to Senegal in the south, also entering the western Mediterranean Sea. The vadigo is similar in form to both the leatherjacks and the queenfish, but can be distinguished by its scaleless chest and a broad, rounded upper jaw. It is a predatory fish, preying mostly on smaller schooling fishes.
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With roughly spherical to slightly elongated, gelatinous, and scaleless bodies and large triangular heads, leftvents possess a body plan typical of deep-sea anglerfish. In females only, long, sharp fang-like teeth line the jaws of a cavernous maw. An illicium (a modified dorsal spine; the "fishing rod") — and an esca (a bulbous, bioluminescent "fishing lure") are present, also in females only. The illicium is shorter and the esca larger and complex compared to those found in some other anglerfish families, and its conformation is unique to each species.
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The Mexican blind brotula has a large, laterally compressed, scaleless head with no eyes, but several papillae and cavities which contain sensory organs. The nostrils are located on the upper lip and the mouth has a longitudinal split at the back. The body bears scales and has long dorsal and anal fins which terminate close to, but are separate from, the caudal fin. The dorsal fin has no spines and 75 to 87 soft rays, and the anal fin has no spines and 59 to 68 soft rays.
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The lateral line has a gentle anterior arch, which is slightly longer than the straight section of the lateral line, with the intersection below the 13th to 16th soft ray of the dorsal fin. The curved section contains 80 to 88 scales, while the straight section consists of 12 to 17 scales and 26 to 31 scutes. The breast is scaleless until the origin of the pelvic fins and up to the origin of the pectoral fins, although some individuals have a narrow band of scales separating the pectoral fins.
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Black seadevils are characterised by a gelatinous, mostly scaleless, globose body, a large head, and generous complement of menacingly large, sharp, glassy, fang-like teeth lining the jaws of a cavernous, oblique mouth. These teeth are depressible and present only in females. Some species have a scattering of epidermal spinules on the body, and the scales (when present) are conical, hollow, and translucent. Like other anglerfishes, black seadevils possess an illicium and esca; the former being a modified dorsal spine--the "fishing rod"--and the latter being the bulbous, bioluminescent "fishing lure".
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Dimetrodon grandis in an upright posture based on Dimetropus tracks, with scaleless skin and scutes on its underside No fossil evidence of Dimetrodon's skin has yet been found. Impressions of the skin of a related animal, Estemmenosuchus, indicate that it would have been smooth and well-provided with glands, however this form of skin may not have applied to Dimetrodon as its lineage is fairly distant. Dimetrodon also may have had large scutes on the underside of its tail and belly, as other synapsids did. Evidence from the varanopid Ascendonanus suggests that some early synapsids may have had squamate-like scales.
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Accordingly, paleoart often shows the remainder of the depression being occupied by a scaleless, inflatable bladder. In 2015, however, Albert Prieto-Márquez and Jonathan Wagner found low and subtle impressions of polygonal scales in the frontmost part of the depression behind the beak. These scales suggest that the rest of the skin that once covered the depression might have been scaly. For this reason, these authors preferred an older interpretation by James A. Hopson from 1975, who proposed a scaly bladder with brightly colored skin between the scales which became visible only when the bladder was inflated.
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The California lizardfish spends most of its time camouflaged at the sandy bottom, buried or unburied, with its body propped up by its front ventral fins at a slight angle. When prey in the form of small fish or squid swims past, the fish will dart upward to grab it, swallowing the prey whole. This species is believed to spawn during the summer months, when adult fish have been observed to congregate on sandy patches. Young lizardfish are less than long, nearly transparent, and scaleless, with a row of large black spots under the skin of the belly.
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It is a harmless scaleless, eel-like animal with a pinkish body, a whitish head and a whitish mid dorsal stripe. The size of captured specimens ranges between 91 and 394 mm. The southern hagfish is found in the cold waters of the Southwestern Atlantic Ocean from the coasts off Southwestern Brazil down to the Southern Ocean and the Tierra del Fuego and the Patagonian coasts of Chile and Argentina, including the Strait of Magellan. First record of the Southern hagfish Myxine australis in Brazilian waters It lives hidden in the mud in relatively shallow water, between 10 and 100 metres.
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The humpback chub (Gila cypha) is a federally protected fish that lived originally in fast waters of the Colorado River system in the United States. This species takes its name from the prominent hump between the head and dorsal fin, which is thought to direct the flow of water over the body and help maintain body position in the swift currents of the Colorado. The body is almost entirely scaleless, retaining only about 80 mid-lateral scales along the lateral line. The fish is very streamlined, with a thin caudal peduncle and a deeply forked tail.
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Typically galaxiid in form, scaleless, with an elongated, tubular body, and moderately sized mouth, it may be distinguished from other galaxiid species by the small eye and the blunt, rounded head shape with protruding tubular nostrils over the upper lip. Pectoral fins are rounded. The pelvic fins are small and set at about the midpoint of the fish's length, and the dorsal and anal fins are set right back with the dorsal fin slightly ahead of the anal. Caudal fins are rounded with well-developed flanges along the caudal peduncle reaching nearly to the posterior edges of the dorsal and anal fins.
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The body plan of the combtooth blennies is archetypal to all other blennioids; their blunt heads and eyes are large, with large continuous dorsal fins (which may have three to 17 spines). Their bodies are compressed, elongated, and scaleless; their small, slender pelvic fins (which are absent in only two species) are situated before their enlarged pectoral fins, and their tail fins are rounded. As their name would suggest, combtooth blennies are noted for the comb-like teeth lining their jaws. By far the largest species is the eel-like hairtail blenny at 53 cm in length; most other members of the family are much smaller.
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Also on the wings are small and oval scaleless areas (hyaline spots) that look like transparent "windows" and mimic holes left by insect larvae on leaves. A 1902 illustration of two specimens of Kallima paralekta shows one with wings folded and almost indistinguishable from the dead leaves, and one with wings outstretched showing brilliant colors. The tips of the forewings are pointed, while the tips of the hindwings extend into a short narrow tail, resembling leaf petioles. Running through the middle of both forewings and hindwings is a line, dark on one side and light on the other, representing the shaded and illuminated sides of a leaf midrib.
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The longnose trevally (Carangoides chrysophrys), also known as the tea-leaf trevally, club-nosed trevally, grunting trevally or dusky trevally, is a species of inshore marine fish in the jack family, Carangidae. The species is distributed throughout the tropical and subtropical waters of the Indian and west Pacific Oceans from South Africa to New Zealand and Japan, inhabiting coastal waters, especially reefs, to a depth of 90 m. The longnose trevally is distinguished from similar species by a combination of a scaleless breast and the number of gill rakers and fin rays. It is a moderately large fish, growing to a maximum known length of 72 cm and 4.35 kg.
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The fivebeard rocklings is a long, slender fish which may attain a length of . It has a smooth, scaleless body with unusual and long dorsal, which is made up of a first ray followed by a line of vibrating rays in a furrow in the back. The front part of the dorsal fin does not have any membrane connecting the rays although the rear dorsal fin is which runs the length of the body, as does the anal fin, is made up of rays connected by membrane. It has five barbels around its mouth, two above either nostril and a single barbel on the lower jaw.
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Although scaled, some filefish have such small scales as to appear scaleless. Like the triggerfish, filefish have small gill openings and greatly elongated pelvic bones creating a "dewlap" of skin running between the bone's sharply keeled termination and the belly. The pelvis is articulated with other bones of the "pelvic girdle" and is capable of moving upwards and downwards in many species to form a large dewlap (this is used to make the fish appear much deeper in the body than is actually the case). Some filefish erect the dorsal spine and pelvis simultaneously to make it more difficult for a predator to remove the fish from a cave.
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The lateral line is moderately curved anteriorly, with the curve having 62 to 72 scales present on it, while the straight section contains three to eight scales and 24 to 32 scutes. The breast of the duskyshoulder trevally is scaleless, extending up to behind the pelvic fin origin and laterally to the pectoral fin base. It has six to 10 gill rakers on the first arch and 16 to 20 on the second arch, and the species has 24 vertebrae. The duskyshoulder trevally is a dusky green colour above, fading to silver below, with adults and juveniles often having five or six dark broad crossbars running vertically down their bodies.
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E. lineatus has a total of 10-15 spines in its dorsal fins with the anterior spines of the first dorsal fin being much taller than the middle spines which gives this fin a concave outline. The anal fin has 11 - 12 soft rays and it has a vertebra count of 37. Its body is almost entirely scaleless except for the lateral line and a "corselet" and there is no swim bladder. It is generally iridescent blue in colour with black markings on its back made up of 3 to 5 horizontal stripes, as well as a variable amount of black or dark grey spots above the pelvic fins.
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The Kauri-butanol value ("Kb value") is an international, standardized measure of solvent power for a hydrocarbon solvent, and is governed by an ASTM standardized test, ASTM D1133.ASTM D1133 - 10 Standard Test Method for Kauri- Butanol Value of Hydrocarbon Solvents The result of this test is a scaleless index, usually referred to as the "Kb value". A higher Kb value means the solvent is more aggressive or active in the ability to dissolve certain materials. Mild solvents have low scores in the tens and twenties; powerful solvents like chlorinated solvents and "High Sol 10" or "High Sol 15" (naphthenic aromatic solvents) have ratings that are in the low hundreds.
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The longfin trevally (Carangoides armatus), also known as the longfin kingfish, longfin cavalla or armed trevally, is a species of inshore marine fish in the jack family, Carangidae. The species is common in tropical to subtropical waters of the Indo-Pacific, ranging from South Africa in the west to Japan in the east, typically inhabiting inshore reefs and bays. The species is easily distinguished by its elongate dorsal and anal fin lobes and filamentous dorsal rays, as well as its scaleless breast. Longfin trevally are pelagic predators, taking a variety of small fish, cephalopods and crustaceans, and reach sexual maturity at around 21 cm.
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Professor Mary Douglas, formerly of University College London, Northwestern University, and Princeton University, suggested that animals that prohibits represent the vulnerable — blind worms, vulnerable scaleless fish, and ceaselessly laboring ants — which parallel human beggars, orphans, and widows. Douglas argued that directs people not to prey on them, as "Holiness is incompatible with predatory behavior."Mary Douglas, "The Forbidden Animals in Leviticus," Journal for the Study of the Old Testament, volume 18 (number 59) (1993): page 22; see also Mary Douglas, "Land Animals, Pure and Impure," in Leviticus as Literature (Oxford: Oxford University Press, 1999), pages 134–51; Samuel E. Balentine, Leviticus, pages 94–95.
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Francis Morrone, also of the Sun, wrote: > The new façade ... uses glass bands, or "cuts," rather than conventionally > patterned fenestration, across a plane of ceramic tiles glazed so as to > change color subtly when viewed in different light conditions. For me, I am > sorry to say, it's all scaleless. Where Stone's original building read as > neatly scaled to its setting, Mr. Cloepfil's redesign reads as a piece of > abstract sculpture that, at building scale, seems all wrong. Paul Goldberger praised the new building's "functional, logical, and pleasant" interior in a review in The New Yorker, but wrote: > Ultimately, Cloepfil has been trapped between paying homage to a legendary > building and making something of his own.
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Kabayaki on plate: The three skewer holes in the fillet are visible. is a preparation of fish, especially unagi eel,, vol. 7,"kabayaki" by describes it as being used principally or almost always for unagi (「もっぱら鰻」) where the fish is split down the back the Japanese dictionary says kabayaki applies to such fish as ungai, hamo, and dojō (or belly), gutted and boned, butterflied, cut into square fillets, skewered, and dipped in a sweet soy sauce-based sauce before being cooked on a grill or griddle. Besides unagi, the same preparation is made of other long scaleless fish such as hamo (pike conger), dojō (loach), catfish, anago (conger eel), and (gunnels).
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The pelvic fins are short, and fit in fairly pronounced ventral grooves, similar to that of Atropus atropos The lateral line is moderately arched anteriorly, with the curved section containing 57 to 77 scales, while the straight section contains 25 to 43 elements, 11 to 24 of which are weak scutes. Another of the diagnostic traits of the longfin trevally is the scaleless breast, extending from the origin of the pelvic fins to the base of the pectoral fin and anteriorly to the gill cover. There are 24 vertebrae in the species. The longfin trevally's colour is variable with age, although maintains a general colouration of greyish blue above, fading to a whitish silver near the belly region.
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Two closely related species, Polyodon spathula (American paddlefish) and Psephurus gladius (Chinese paddlefish, extinct) are of the same order, Acipenseriformes, but are in the family Polyodontidae and are not considered to be "true" sturgeons. Both sturgeons and paddlefish have been referred to as "primitive fishes" because their morphological characteristics have remained relatively unchanged since the earliest fossil record. Sturgeons are native to subtropical, temperate and sub-Arctic rivers, lakes and coastlines of Eurasia and North America. Sturgeons are long-lived, late-maturing fishes with distinctive characteristics, such as a heterocercal caudal fin similar to those of sharks, and an elongated, spindle-like body that is smooth-skinned, scaleless, and armored with five lateral rows of bony plates called scutes.
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The remains of 2 individuals that have been discovered in the Yixian Formation can be compared to living members of the Paddlefish family to show that very little has changed about them since the Early Cretaceous. Unlike other filter-feeding fish that have been discovered with many members but extremely fragmented remains, only two members of Protopsephurus have been discovered and nearly all the skeletal elements of this chondrostean ray-finned fish species have remained. It is the largest freshwater fish of the Cretaceous period, to which the shark Cretoxyrhina was the largest predatory saltwater fish of the Cretaceous period. The rostrum is narrow and sword-like instead of broad and paddle-like, and its skin is smooth and scaleless.
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Perspective: AuRon, Wistala and the Copper (RuGaard) Dragon Rule is the fifth book and was released on 1 December 2009. Wistala, as sister to the Copper who is now Emperor of the Upper and Lower Worlds, is appointed proxy Queen by crippled Nilrasha, where she advances her ideas of political equality of hominids and dragons. Which puts her at odds with both her brothers, for the Copper has no use for the humans he now dominates, and AuRon, the rare scaleless grey, would isolate himself and his family from both the world of men and the world of dragons. The Copper sends AuRon to bring his old friend Naf's territory Dairuss into the Great Alliance, which he does successfully and becomes its protector.
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