156 Sentences With "nodulous" | Random Sentence Generator

The shell surface of the periwinkle can be smooth or nodulous.

Between these nodulous carin are elevated lines, and the base is very strongly striated.

Sediment structures are characterized by the extreme abundance of roots and nodulous or irregular laminations.

The match flamed, but went out before he could light the nodulous candle she proffered.

The length of the shell varies between 25 mm and 50 mm. The acuminately turreted shell is yellowish white, sometimes stained with brown. The whorls are decussated with nodulous longitudinal ridges and spiral striae. The upper part of the whorls are concave, edged with a slightly nodulous keel.

The shell grows to a length of 9.5 mm. The white shell is slender. The whorls of the teleoconch are flattened, each with three spiral ribs, the two upper ones nodulous. The body whorl has two plain ribs below the nodulous ones, and three revolving ridges below the periphery, forming columellar folds.

The length of the shell attains 9 mm. The whorls are concavely shouldered, somewhat indistinctly keeled. The keel is rendered nodulous by the ends of close obliquely longitudinal ribs, which are short, becoming evanescent about the middle of the body whorl, everywhere with close revolving grooves, which are somewhat nodulous. The color of the shell is yellowish brown.

The surface is dull. The spiral sculpture consists of a prominent nodulous peripheral ridge which is the anal fasciole, with two smaller ridges in front of it with wider interspaces. In front of the first of these the suture is laid. The space between this and the second is more or less channeled, but these two ridges are not nodulous.

The protoconch is white, blunt, polished. The later whorls show, between the sutures, four subequal spiral nodulous cords with deep narrower interspaces. The cord in front of the suture is slightly more prominent than the others. On the body whorl there are about fifteen spiral cords which are crossed by about twenty axial, incised, equally spaced lines, the segments of the cords thus formed being convexly nodulous.

The sutures are canaliculated. The body whorl is ventricated and has a slight angle. The aperture is rounded. There is a thick nodulous ridge bordering the umbilicus.

It may also damage nerves in the face, arms and legs and lead to clawed hands, a nodulous swollen face, or sores on the hands and feet.

The ribs descend from the sutures and are nodulous at the angle, transversely elevated, striated, decussated by very finelongitudinal striae. The aperture is one-half the length of the shell.

The shell of this species is large, solid, thick and imperforate. The shape of the shell is obtusely conic. The spire is elevated. The whorls are flattened, nodulous and carinated.

The sutures are hardly impressed. The spire contains 3 regular, nodulous riblets, the nodules whitish, and subdistant. The interstices are very elegantly rosy. The base of the shell contains 8 lirulae.

The spiral sculpture consists of three or four threads with wider interspaces overrunning and sometimes slightly nodulating the peripheral ribs. In front of these on the base are about eight spiral threads conspicuously nodulous at the intersections with the minor ridges, and with much wider interspaces. On the younger shells these threads are more close set, fewer and less nodulous, the minor ridges inconspicuous. Finally between these in the adult are more or less distinct finer spiral striae.

The length of the shell attains 19 mm. The whorls of the yellowish white shell are strongly turreted. The spire is exserted. The periphery is angulated and nodulous, with fine revolving striae.

Above the periphery one can see two pink and one straw-colored large smooth and rounded spirals, one smaller smooth one, then three large and two intercalary smaller nodulous spirals separated from the suture by a narrow smooth space. The interspaces are brown, the elevations straw-colored. The early whorls have two or three smooth and one or two nodulous spirals, the former remain constant with growth, the latter increase in number. The radiating sculpture consists of flexuous incremental lines, hardly visible.

The nuclear whorl is smooth. The next ones contain three carinae. The base of the shell has about twelve spiral, nodulous ribs with some intermediate, smaller ones. The umbilical region is slightly excavated spirally.

The subsequent are ventricose and impressed at the sutures. The longitudinal ribs are nodulous, shining, and very regular. One spiral sulcation crosses each rib in the middle. The interstices between are beautifully longitudinally striolate.

The whorls are marked by well developed, nodulous axial ribs, of which 20 occur upon all the whorls. The intercostal spaces are about twice as wide as the ribs, crossed by five equal spiral cords, which are about half as strong as the ribs and render them nodulous at their junction. The first spiral cord is a little posterior to the middle of the shoulder. The spaces enclosed by the ribs and cords are deep, rectangular pits, the long axis of which coincides with the spiral cords.

The five whorls are spirally strongly ridged. The ridges are nodulous and number three on the penultimate whorl. The interstices are spirally striate. The body whorl is depressed, angulate at the periphery, and concentrically lirate below.

The whorls show an angulated shoulder bearing nodulous terminations of about ten short oblique ribs. There is no spiral sculpture. The color of the shell is burnt-brown, under an olivaceous epidermis. The nodules are whitish.

They are marked by strongly nodulous, decidedly retractive axial ribs, of which 14 occur upon the first, 16 upon the second to fourth, and 22 upon the penultimate turn. In addition to the axial ribs the whorls are marked between the sutures by four spiral keels which are a little less strong than the ribs and render them nodulous at their junction. The spaces enclosed between the ribs and spiral cords are oblong oval pits on all the whorls but the last on which they are round. The sutures are subchanneled.

These are four to six on the upper whorl, nodulous on the riblets. The nodules are compressed and subacute. The body whorl is convex above and slender below the middle. At this point the costellae are becoming obsolete.

The suture is superficial, with a nodulous border below. The false umbilicus is narrow and not very deep. The oblique aperture is rhomboidal. The outer and basal lip are a little convex, forming a sharp angle where they meet.

The length of the shell varies between 15 mm and 22 mm. The thin, opaque shell is, dark-colored. The sculpture is variable, the longitudinal varying from striae to ribs, sometimes nodulous. The suture is deep, with a sloping infrasutural groove.

The length of the shell varies between 11 mm and 40 mm The ribs are slightly nodulous. The columella is spirally plaited. The siphonal canal is very short and slightly recurved. The outer lip is somewhat thin, without external varix.

The sutures are impressed. The angulated body whorl is depressed beneath the sutures and nodulous at the periphery. It is very convex and with about 8 concentric lirae beneath, the interstices with intercalated lirulae. The aperture is subquadrate and canaliculate within.

The length of the shell attains 18 mm, its diameter 6 mm. The small fusiform shell contains 11 whorls (the superior ones are eroded), covered with a gray epidermis. The lines of growth are rather strong and very flexuous, and on passing the delicate spiral lirae, except in the concavity above the angle of the whorls and at the base of the body whorl, are delicately nodulous. The last volution below the nodose periphery has about fifteen lirae, of which about six of the upper ones are nodulous, the rest, around the anterior contracted portion, being simple and thread-like.

The spirals are about eighteen, and about seven of the upper ones are more or less nodulous on crossing the ribs, the rest below are finer and smooth. Between the nodulous lirae, both on the spire and on the body whorl, there are fine threadlike lines, and the whole surface exhibits delicate wavy growth- striae. The aperture is brown within, not quite one-third the length of the shell. The outer lip is thin at the edge, distinctly sinuate below the sutural keel, and having a rib or varix, larger than the other ribs on the outside.

The length of the shell reaches 5.5 mm. The shell has a turreted fusiform shape, with a produced spire and deep sutures. The color of the shell is reddish brown. It contains nine, straight ribs, decussated and rendered nodulous by spiral riblets.

The length of the shell varies between 10 mm and 20 mm. The whorls are rounded, plicately ribbed, encircled with fine narrow cords, becoming nodulous on crossing the ribs. The outer lip is flattened. The sinus is broad-whitish, stained with chestnut.

The form is rather depressed with turgid whorls, about six in all. The nucleus is white, blunt, imperfect. The base of the shell is flattened, bordered by a sparsely nodulous carina. The sculpture on the spire is slightly protractive, rounded, and short.

The shell is strongly sculptured, longitudinally and spirally. The color of the shell is brownish white, brown-banded at the suture, and in the middle of the body whorl. The nodulous intersections of the sculpture are frequently brown-tipped.George Washington Tryon, Manual of Conchology vol.

The early whorls of the teleoconch show a nodulous sculpture produced by strong axial riblets and strong spiral lirations. These axial riblets disappear on the body whorl, while the spiral lirations remain. The aperture is oblong- oval, slightly channelled in front. The columella is simple.

The size of the shell varies between 8 mm and 65 mm. The shell has four to seven varicose, nodulous, encircled by prominent cord-like, raised ribs. These are alternately smaller, the smaller ones minutely scabrous. The varices are sometimes frondose, sometimes lamellated, occasionally appressed.

They show regular incrassate nodulous longitudinal ribs, bluntly angled at the periphery. The nodules are large and shining. The ribs on the body whorl number eight or nine. These are crossed by somewhat coarse revolving lines, which, in the specimens before us, are nearly obsolete.

They become stronger on the earlier whorls and number about fifteen on the penultimate whorl. These ribs are feeble, with wider interspaces, rounded, and protective, becoming obsolete on the base and most of the body whorl. The spiral sculpture is strongest in the shoulder keel, which is a little nodulous where it crosses the ribs. In front of it are three to five spiral threads (on the spire) of which the second is strongest and faintly nodulous, the others feebler, more adjacent and simple These become more numerous by intercalation, the body whorl having about sixteen between the keel and the end of the siphonal canal.

The sinus is rather deep. The siphonal canal is oblique and recurved. The dark chocolate-colour, with the three yellowish spots which are slightly nodulous on each rib, and the smooth concavity at the upper part of the whorls are very distinctive characters. Smith E.A. (1877).

The yellowish-brown to dark brown periphery of the shell is nodulous by the terminations of short, oblique, rather distant axial ribs (numbering 12-14). The spiral striae are faint to distinct. The anal sinus is broad. The color of the shell is a uniform light yellowish brown.

The length of the shell varies between 12 mm and 15 mm. The light brown shell is slightly shouldered. The ribs continue to the sutures, nodulous below the shoulder, by the crossing of revolving lines.G.W. Tryon (1884) Manual of Conchology, structural and systematic, with illustrations of the species, vol.

The shell has a very dark chocolate color. The whorls are longitudinally ribbed with the ribs terminating on a nodulous periphery, above which the surface is smooth and slightly concave. The lower portion of the body whorl has revolving striae. The shell reaches a length of 22 mm.

Two of the spiral lirae around the middle of the whorls are more conspicuous than the rest, and much more distinctly nodulous. The fine growth lines are sinuose, and most evident at the upper part of the whorls.Smith, E. A. 1915. Mollusca. Part I.--Gastropoda Prosobranchia, Scaphopoda, and Pelecypoda.

All the whorls are ventricose, impressed, and spirally plainly ridged suturally, and crossed by strongly developed spirals, swollen and almost becoming nodulous at the points of junction with the costae. The aperture is small and ovate. The outer lip is slightly expanded. The sinus is wide but shallow.

The length of the shell attains 14 mm, its diameter 7 mm. The oblong-clavate shell is thick and solid. The conical spire is acuminate and contains eight narrow whorls. The whorls show nine, pronounced, straight longitudinal ribs positioned at equal and regular intervals, becoming slightly nodulous at the suture.

The length of the shell attains 8 mm, its diameter 2.5 mm. This is a small highly coloured, fusiform species, with a conspicuous, spiral, swollen, nodulous angle just above the centre of the whorls. It contains eight whorls, of which two in the protoconch. The aperture has a square-ovate shape.

The axial sculpture consists of 22-24 narrow ribs. The spiral sculpture consists of three main lirae and smaller ones in-between (in the body whorl about 25). The spiral lirations are slightly nodulous on crossing the ribs. The narrow aperture measures about half the total length of the shell.

The size of the shell varies between 4 mm and 8 mm. The sculpture, compared to Dentistyla asperrima, is more strongly and exclusively nodulous. A strong blunt tooth is prominent on the columella just within the aperture and above the base of the shell. The outer lip is lirate within.

On the base of the shell there are seven spirals, faintly nodulous, articulated with pale brown, and separated by much wider impressed interspaces, over which are a few fine spiral lines. The base is flattened, or even a little concave. The columella is moderately arcuate. The aperture is four-sided.

The periphery has a very sharp weakly crenulated keel. The base of the shell is slightly convex, with fine growth striae and more conspicuous spirals, of which 5 near the periphery and 5 near the centre are considerably stronger. The latter are more or less nodulous. The aperture is subquadrate.

The spiral sculpture consists of a strong, sometimes nodulous or undulated peripheral keel, rather nearer the succeeding suture than to the preceding one, the latter space occupied by the slightly concave anal fasciole. The axial sculpture consists only of arcuate incremental lines. The base of the shell is rounded;. The aperture is narrow.

The shell contains numerous whorls, convex, slightly angulated and noduled on the periphery. They are flexuously longitudinally ribbed below and cancellated by raised revolving lines. The suture is bordered by an obliquely nodulous band. The color of the shell is yellowish or flesh-brown, sometimes narrowly dark-banded at the suture and base.

The fissure in the lip, below the suture, and above the nodulous angle, is broad and moderately deep. The outer lip is thin, prominent in the middle, with a very shallow sinuation near the base, smooth and not lirate within. The columella is callous at the base. The siphonal canal is very short.

The length of the shell attains 18 mm. The reddish brown shell shows a white narrow band on the periphery, and, on the body whorl, a second inferior band. It contains 12½ whorls, with obsolete flexuous longitudinal plications, crossed by revolving lines. These are nodulous at the periphery, and less distinctly so inferiorly.

The length of the shell varies between 8 mm and 20 mm. The shell has a very dark chocolate color, with sometimes a narrow white line above the periphery, but this is usually absent. The spire is lengthened or short. The whorls are rudely prominently keeled on the periphery, which is nodulous.

The body whorl has a distinct peripheric keel. The sculpture consists of 5 to 6 low spiral threads, the lower and upper margins much elevated, especially the former. They are crossed by broad nodulous radiate ribs, which, however, do not extend over the lower half of the whorl. These ribs are often obsolete.

The length of the shell attains 17 mm, its diameter 8 mm. (Original description) The fusiform shell is moderately stout, with a high, regularly tapered spire, and very convex, shouldered whorls. These have strong, oblique, transverse ribs rendered nodulous by well- developed, raised cinguli. The shell contains six whorls, below the chestnut- colored protoconch.

In front of these four or five obscure threads appear on the siphonal canal. The axial sculpture consists of strong retractive wrinkles at the suture, which become arcuate nodulous riblets on the fasciole and dwindle protractively in front of it. There are also more or less obvious incremental lines. The aperture is moderate and simple.

The size of an adult shell varies between 20 mm and 65 mm. The diameter is 16 mm. The whorls are angulated in the middle and nodulous on the angle. Above it the surface is smooth, below the nodules are continued as flexuose wrinkles or ribs, becoming evanescent towards the base of the aperture.

The columella is concave, corrugated by the basal keels, which pass into the shell. The outer lip is armed by four spines, alternating large and small. The sinus is sutural, deep and narrow, bounded on one side by the sutural lirae, and on the other by the finely a nodulous keel. May, W.L. 1915 [1916.

The length of the shell varies between 14 mm and 27 mm. (Original description) The shell is moderately large, stout and ovate. The body whorl is very large in proportion to the rest of the shell. Some of the upper whorls are ribbed and nodulous, while the two lower whorls have only spiral lines and lines of growth.

The axial sculpture consists of (on the body whorl eight) prominent angular ribs with wider interspaces, beginning abruptly at the shoulder rapidly dwindling anteriorly and obsolete on the base. These ribs are crossed by (on the body whorl about 14) widely spaced slender cords, slightly nodulous at the intersections. The aperture is narrow. The anal sulcus is shallow.

On the upper slope are two or more faint spirals. Numerous axial lirae cancellate the shell and pass over the keels, rendering them nodulous. They disappear on the lower part of the body whorl, which is occupied by about eight smooth spirals. The aperture is subquadrate, contracted in front to form a short open siphonal canal.

The minute nucleus is flattish. The body whorl contains four strong, beaded, spiral cords with subequal interspaces, peripherally. Between these and the suture, there are three slightly smaller similar cords, the space at the suture giving a channeled effect. On the base there are two less prominent cords and two wider nodulous ridges around the deep, rather narrow umbilicus.

The aperture measures about half the length of the shell. The whorls are flattish. The axial sculpture consists of (on the body whorl or a dozen) narrow, nearly straight ribs, with wider interspaces, obsolete on the base, but occasionally a little nodulous at the shoulder. The spiral sculpture is hardly discernable or none, even on the siphonal canal.

The junction of the ribs and the cords are strongly nodulous. The spaces inclosed between them are deep squarish pits. The sutures are strongly channeled. The periphery of the body whorl is marked by a broad groove that is crossed by the continuations of the axial ribs which terminate at the posterior margin of the first basal keel.

The length of the shell is about 3.5 mm, and its diameter is about 1.75 mm. This very small shell has some slight resemblance to Mangilia thepalea Melvill & Standen, 1896 (a taxon inquirendum). The nodulous papillae are, however, much larger in proportion to the size of the shell, and, in consequence, fewer. The upper whorls are closely tubercled, shining white.

The size of the shell varies between 25 mm and 42 mm. (Original description) The shell has a fusiform shape. The whorls are marked by a narrow, obscurely nodulous spiral keel at the summit, which is followed by a depressed spiral sulcus that equals the keel in width. The two comprise the posterior two-fifths of the whorls between the sutures.

The peristome is thin, a trifle crenulated inside. The columella has a slight excavation, and is very bluntly nodulous near the base. The interior is brightly nacreous The shell color is typically a light yellowish-brown with irregular lighter, subsutural maculations, very occasionally with pink or purple beads or rarely a stripe. It has a peripheral circle of alternating chestnut and white spots.

The suture is distinct, not appressed. The anal fasciole is adjacent to it with no thickened cord between. The whorls are well rounded but the fasciole is flattish. The spiral sculpture consists of (on the early whorls two, on the body whorl about 15) sharply incised lines in front of the shoulder cutting the ribs into squarish segments which are hardly nodulous.

The length of the shell attains 30 mm, its diameter 10 mm. The shell is dark brown under an olivaceous epidermis, with about ten curved longitudinal ribs, obsoletely nodulous on the periphery, with the whorls usually slightly constricted above it. The ribs are generally obsolete on the body whorl of adult specimens. The suture is narrowly corded, noduled and spotted.

The shell is lusterless, red, marked at the suture, keel and base with olive or brown articulated with white. The surface is very rough, with a strong double nodulous keel at the middle of the whorl, several nodose spiral riblets and threads below it, strongly. The shell is plicate or puckered below the sutures. The aperture is irregular-oval and nacreous inside.

They are marked by very strong, vertical axial ribs, of which 16 occur upon all the whorls. In addition to these ribs, the whorls are marked between the sutures by four moderately strong spiral cords, which render the junction with the ribs obscurely nodulous. The spaces enclosed between the ribs and cords are well impressed squarish pits. The sutures are strongly impressed.

In addition to these spiral cords the whorls are marked by weak axial ribs which extend only feebly to the first supra-peripheral cord, rendering the junction with the cords feebly nodulous. The sutures are strongly constricted, not channeled. The periphery of the body whorl is marked by a spiral cord. The base of the shell is rounded, slightly channeled anteriorly.

The shell shows prominent spiral ridges, of which there are three on the main part of the body whorl, and two slighter ones at the base, and two ridges on the spire whorls. They are crossed obliquely by sharp longitudinal ribs, extending to the base. Their intersections with the spiral sculpture appear nodulous. The columellar tooth is small and remote.

By interposition of additional spirals each double bead extends into a short oblique nodose rib. Below the suture is an indefinite band, followed by a distinct and excavate fasciole. The latter is sculptured with fine lunate striae. On the body whorl anterior to the fasciole are about twenty-three prominent but irregular spiral cords, some of which are rendered nodulous by passing over the ribs.

On the body there are about twenty spirals, stronger at the shoulder, smaller and closer forward, the wide interspaces finely spirally striate, while the most prominent spirals are undulate or obscurely nodulous. The transverse sculpture is nearly obsolete and hardly to be distinguished from the incremental lines. The aperture is elongate and oval. The outer lip is thin, sharp, crenulated by the sculpture, but not lirate.

The two apical whorls are smooth, convex, rather large. The rest is considerably excavated above and rather bulgingly convex inferiorly and obliquely ribbed. There are 9 ribs on the penultimate whorl, subobsolete in the concavity at the upper part of the whorl, and again nodulous at the suture. The body whorl shows a transverse series of white dots on the ribs a little below the middle.

The size of an adult shell varies between 13.5 mm and 19 mm. (Original description) The small shell is pinkish white and polished. It is acute, with a flat-topped protoconch of two polished, prominently peripherally keeled whorls and about eight subsequent whorls. The suture is appressed, with a retractively nodulous, thickened band in front of it, forming the posterior margin of the anal fasciole.

The seven whorls are much flattened, with the suture scarcely impressed. The upper whorls are coronated by two, and the bodywhorl by three, revolving, strongly nodulous ribs, along which the conical, often acute nodules are very regularly arranged. The first of these rows of nodules is just below the suture. The second is separated from the first by a wide, flat, or slightly concave interspace.

The length of the shell attains 12 mm. (Original description) The shell is elongately fusiformly turreted, solid, pale fulvous yellow. It contains 7 whorls, angulated and flattened at the upper part. The shell is longitudinally somewhat prominently ribbed, the ribs slightly nodulous at the angle of the whorl, the interstices crossed with narrow grooved lines in pairs, which are interrupted by the longitudinal ribs.

The elongate-conic shell is white. It measures 4.8 mm. The whorls of the protoconch are small, deeply obliquely immersed in the first post-nuclear turn, above which only the tilted edge of the last volution projects. The six whorls of the teleoconch are well rounded, marked by slender, nodulous, retractive axial ribs, wliich terminate at the posterior extremity of the supra-peripheral cord, leaving this smooth.

The length of the shell varies between 7.5 mm and 12.5 mm. (Original description) The shell is rather small and delicate. It is long-ovate, regularly turreted and contains about six whorls. These rise almost at right angles from the suture, and have an angular, or squarish, nodulous shoulder, usually distinctly carinated by a thin, raised, spiral keel, which forms small, but promineut nodules where it crosses the ribs.

The size of an adult shell varies between 20 mm and 60 mm. The shell is yellowish white or brownish, usually interruptedly broad-banded above and below the middle of the body whorl. The spire is turreted. The whorls are covered with a sutural cord and have a smooth, slightly concave shoulder The periphery is nodulous with the terminations of oblique, longitudinal ribs, which are crossed by strong revolving lines.

The whorls of the spire contain four spiral cords, the upper two the stronger, cross the axials below the shoulder, giving a reticulate sculpture to the spire. The shoulder is smooth and concave. The body whorl has spiral sculpture only. The uppermost spiral cord on the shoulder angle is faintly nodulous on the earlier part of the body-whorl as a last suggestion of the previous axial sculpture.

The whorls are gently rounded, closely appressed to the almost invisible suture and excavated in front of it. The body whorl is flatter above, more rapidly enlarged at the periphery. The sculpture consists of small regular waves on the carina, about six in a space of 5 mm, giving a minutely scalloped outline. Behind this is a strong nodulous thread, revolving like a string of small uniform beads.

Between these and the sutures are four or five smaller and closer ribs of a similar character, and on the base of the body whorl about eight ribs which are less nodulous and scabrous than those above, the interstices being crossed by fine striae. The spire is somewhat elevated. The aperture is nearly circular and pearly within. The columella is thickened, terminating in a blunt callosity at the base.

At the periphery the thin keel is produced into narrow, guttered spines with two or three radial threads on each. The body whorl carries 10 to 15 triangular spines. The base is elegantly flammulated with dark purple, sculptured like the upper side, having one strong nodulous and seven or eight smaller spirals and the same imbricate minor sculpture. The peripheral keel should have, when intact, about 20 spines.

The suture is not strongly marked, and runs just below the periphery of the preceding whorl. The base of the shell (diameter: 16 mm) is slightly convex, with ten or eleven similar incised spiral lines stronger toward the umbilicus, where the interspaces become feebly nodulous. The last one on the brink of the umbilicus is more strongly so. The umbilicus is moderately large (diameter 2.5 mm) and funicular.

The sutures are either simple, linear, or somewhat canaliculate. There is a concavity in the subsutural area. The about 5 whorls are spirally transversed by excessively minute spiral striae. The body whorl has an acute nodulous carina at the periphery, and another angulation or keel at the middle of the upper surface of the whorl and continued upon the spire, and which is usually nodose on the body whorl.

The remaining whorls are acutely carinate, with an area below the suture, either smooth or with arcuate striae. Below the carina appear numerous longitudinal riblets, decussated by spiral carinations, giving the shell a somewhat prickly or nodulous appearance. The aperture is small, with a well-marked sinuation above. The columella is vertical, a little twisted at the base.Sykes E. R. 1906 On the Mollusca procured during the “Porcupine” Expeditions 1869–1870.

The size of an adult shell varies between 18 mm and 30 mm (Original description) The slender shell slender contains about eight (slightly decollate) whorls. Its color is livid olivaceous with a pale peripheral band, lighter near the aperture. The suture is appressed, on the upper whorls rudely nodulous. The spiral sculpture in front of the fasciole on the spire consists of five or six strong cords with narrower interspaces, overriding the ribs.

In the first small whorls it is undulated or obscurely nodulous, but in the last four or five whorls not so. From it the posterior part of the whorl ascends to the suture almost in a straight line or section of a cone, the anterior slope is full and rounded. The anal fasciole is polished and marked only by the fine silky incremental striae. The other transverse sculpture consists solely of fine incremental lines.

The axial sculpture consists of (on the spire about a dozen) short narrow ribs, very prominent and almost angular in front of the fasciole and on the body whorl extending nearly to the siphonal canal, with wider interspaces and not nodulous behind the base. The incremental lines are very fine and minutely crenulate the fine spiral sculpture in places. The aperture is narrow. The short anal sulcus is rounded, with a strong subsutural callus.

The length of the shell attains 39 mm, its diameter 11 mm. The elongate, fusiform, turreted shell is very characteristically coloured. The reddish-ochre colour is uniform, except where the transverse lirations (5 in the penultimate whorl and about 22 in the body whorl) cross the ribs or plications (14 in the body whorl), where they are white and slightly nodulous. The suture is well defined by the sudden termination of the ribs.

This genus includes the thin-shelled light-colored species, previously included in Drillia W.H. Dall (1918) Notes on the nomenclature of the mollusks of the family Turritidae; Proceedings of the United States National Museum v. 54 (1918) The shell is generally short and stout, the spire often very short. The whorls contain nodulous axial ribs, extending over the whole of the volutions. They are generally without spiral sculpture, or, if present, very weak.

There is a moderately elevated round thread in front of the suture and more or less undulated by the ends of the ribs behind it. On the siphonal fasciole there are a few fine threads. The transverse sculpture of (on the body whorl fifteen) moderately elevated ribs, beginning and strongest on the shoulder of the whorl and fading away anteriorly near the siphonal canal. On the base they are slightly nodulous between the spiral grooves.

They are marked by very broad, strong, retractive axial ribs, of which 16 occur upon the second and third and 20 upon the penultimate turn. In addition to the axial ribs the whorls are marked by four very broad, low spiral cords, which are separated by mere incised lines between the sutures. This renders their junction with the axial ribs very strongly nodulous. The sutures are constricted, showing a portion of the peripheral cord.

These are followed by eight sculptured whorls. The suture is appressed, obscure, behind a strongly constricted anal fasciole sculptured with almost microscopic spiral striae. The other spiral sculpture consists of small obsolete threads covering the whole surface in front of the fasciole and three or four cords on the base of the body whorl widely separated and conspicuously nodulous where they cross the ribs. There are also 10 or more closer cords on the siphonal canal.

The length of the shell varies between 12 mm and 24 mm. The shell is small, imperforate, and solid. Its color pattern is pale greenish buff or light pink, painted with very broad descending flames of an orange color on the upper portion of the whorls. The 4½ whorls are angulated on the periphery, and flattened above,The upper whorls are encircled below the angle with two ribs and the body whorl with five stout scabrously nodulous ribs.

They are marked by the moderately strong, tuberculate, slightly retractive axial ribs, of which 16 occur upon the second and 18 upon the third and penultimate turn. In addition to the axial ribs the whorls are marked by four spiral cords between the sutures which are a little less strong than the axial ribs and render them nodulous at their junction. The spaces enclosed by the ribs and spiral cords are deep round pits. The sutures are channeled.

They are marked by strong vertical axial ribs, which are decidedly contracted at their junctions with the spiral grooves, which lends them a somewhat nodulous aspect. Of these ribs, 16 appear on the first, 18 on the second, 20 upon the third to fifth, 22 on the sixth, and 24 on the penultimate turn. The intercostal spaces are about as broad as the ribs. They are crossed by five strongly incised spiral grooves which almost cross the ribs.

The intercostal spaces are a little wider than the ribs, crossed by four slender spiral cords, the junction of which with the ribs renders them feebly nodulous. The sutures are strongly impressed but not channeled. The periphery and base of the body whorl are well rounded, the latter marked by nine slender spiral cords, the spaces between which are crossed by fine axial threads. The oval aperture is slightly effuse anteriorly The posterior angle is acute.

They are marked by nodulose slightly retractive axial ribs of which 20 occur upon the first to second, 18 upon the third, and 22 upon the penultimate turn. In addition to the ribs the whorls are marked between the sutures by four spiral cords considerably less strong than the ribs, which render them nodulous at their junction. The spaces enclosed by the ribs and spiral cords are deep round pits. The sutures are well marked but not channeled.

Two of the lirae (in all six in number) are vastly stouter than the rest, and on crossing the ribs form two distinct series of nodules around the lower part of the whorls. The other lirae above and below these are fine and threadlike. Beneath the sutural wavy keel on the last whorl are three fine lirae. Then follow nine of the coarse nodulous ones ; and around the basal extremity or cauda, which is brownish, are about six finer ones.

The length of the shell attains 5 mm. (Original description) The fusiformly turreted, solid shell is white, sometimes with a zone of double interrupted chestnut lines near the base of the body whorl, similar chestnut markings being occasionally apparent here and there near the upper portion of the whorls. The shell contains 6 whorls, convex, longitudinally ribbed and crossed with transverse ridges that become sharply and prominently nodulous upon the ribs. The spire is sharp with a light brown apex.

The columella-margin is more or less sinuous. The protoconch differs in sculpture, and usually in color, from the rest of the whorls, and is generally minutely cancellated by fine raised lines running obliquely in opposite directions. The remaining whorls are elegantly sculptured by longitudinal ribs and revolving cinguli, and usually have a distinct shoulder or carina, which is frequently nodulous, below the subsutural band. The animal is destitute of an operculum, and, in all the species hitherto examined, is without eyes.

They are marked by moderately strong, almost vertical, axial ribs, of which 16 occur upon the second and third, 18 upon the fourth, 20 upon the fifth, and 22 upon the penultimate turn. In addition to the axial ribs, the whorls are marked by four slender spiral cords between the sutures, the junction of which, with the axial ribs, renders them feebly nodulous. The spaces enclosed by the ribs and cords are well impressed squarish pits. The sutures are strongly channeled.

Both lamellae are faintly nodulous; the posterior one slightly more so than the anterior. The deep channel between the two keels is marked by very feeble slender axial threads. The periphery of the body whorl is marked by a lamella a little less strong than those between the sutures. The base of the shell shows two lamellae, the anterior of which is immediately behind the columella and much less developed than the median one, which is somewhat weaker than the peripheral lamella.

A single fine raised not nodulous thread separates each pair of the preceding. The sixth and seventh spirals are smaller than the fifth and close together. They stretch over a series of more distant swellings, and are concavely impressed between them. As these lines form the periphery, this gives a wavy or scalloped outline to the base, which has about eighteen such waves arranged to a certain extent in pairs, the distance and concavity between them alternating greater and less.

They are marked by well-developed, narrow, rounded, almost vertical axial ribs, of which 24 occur upon the first to third, 26 upon the fourth, 28 upon the fifth, and about 36 upon the penultimate turn. The intercostal spaces are about as wide as the ribs, crossed by five series of spiral pits which are as wide as the five raised spaces which they separate. The junction of these raised cords with the ribs renders them nodulous. The sutures are constricted.

They are marked by strong, vertical axial ribs, of which 16 occur upon the second and third, 18 upon the fourth, 20 upon the fifth and sixth, and 26 upon the penultimate turn. The intercostal spaces are about twice as wide as the ribs, crossed by five slender spiral cords between the sutures, which render the ribs feebly nodulous at their junction. The sutures are strongly impressed. The periphery and the base of the body whorl are decidedly inflated, the latter narrowly umbilicated.

They are marked by six spiral cords between the sutures, of which the second and third below the summit are very narrow, occupying together about as much space as one of the other cords. These cords are separated by grooves which almost equal them. The axial sculpture is reduced to feeble indications of ribs which are best shown near the summit of the whorls, where they render the spiral keels feebly nodulous. About twenty-two of these ribs appear upon the penultimate whorl.

They are marked by strong vertical axial ribs of which there are 16 upon the first and second, 18 upon the third to fifth, and 20 upon the penultimate turn. In addition to the ribs the whorls are marked by four spiral cords about one-half as strong as the ribs, between the sutures: the first of these is at the angle of the shoulder. The junction of the spiral cords and ribs are nodulous. The spaces enclosed between them are rectangular pits.

They are ornamented by slender axial ribs, of which 15 occur upon the second and 18 upon the remaining whorls. In addition to the axial ribs, the whorls are marked between the sutures by two strong spiral keels, one of which is situated at the angle of the shoulder, the other at the posterior termination of the anterior third between the sutures. The junctions of the axial ribs and spiral keels are very slightly nodulous. The sutures are deeply channeled.

The lines of growth are much finer than in the ordinary form and do not take the appearance of riblets on the body whorl, nor do they render the cinguli nodulous. The suture is sharply impressed, and the raised revolving line usually present just below the suture is absent. This form, therefore, is characterized by the relative predominance of the spiral sculpture over the transverse, and by the absence of distinct nodules at the crossing of the two systems of lines. Verrill A. E. (1884).

The subsequent whorls are scarcely convex, probably about half a whorl with only a few smooth ribs must still be reckoned to the protoconch. The remaining whorls contain a rather strong, nodulous, bilirate, infrasutural rib, red-brown in the interstices of nodules. Below this is a rather narrow excavated space, with 5 spiral threads and faint, descending, red-brown llammules, corresponding to the interstices of the subsulural nodules. The lower part of the whorls show slightly oblique, rather numerous ribs, 17 in number on penultimate whorl.

The plicae are obsoletely nodulous above at the suture, bearing larger nodules at the angle and two smaller ones beneath it. The nodulesare connected by spiral lirae between the plicae, which are coarser than other intermediate fine spiral lirations. The body whorl is encircled by about fourteen of these transverse lirae, whereof nearly all, with the exception of a few at the base, are more or less granular on the plicae. The aperture measures about two-fifths of the entire length of the shell, light brown.

The fifth whorl and the ninth whorl show nine short protractive axial ribs confined to the shoulder and periphery. The whorls are covered with spiral threads of which two marginating the suture and two on the periphery are more conspicuous than the rest, but not perceptibly nodulous. Between the peripheral cords there are, on the later whorls, from two to four minor threads.;On the base of the body whorl there are six or seven major, as many intermediate, and about a dozen minor threads.

They are marked by strong, rounded, decidedly retractive axial ribs, of which 16 occur upon the second, 18 upon the third, and 20 upon the penultimate turn. In addition to the axial ribs the whorls are crossed between the sutures by four spiral cords, which are as strong as the ribs and render them nodulous at their junction. The second of these cords below the summit marks the angle of the shoulder. The spaces enclosed by the ribs and cords are deep, squarish pits.

The nucleus and interior walls of the umbilicus is dark brown. Several of the spiral grooves above and below are marked by a darker brown than the rest, and appear as brown lines. (Original description by W.H. Dall) The sculpture above, on the nuclear whorls, consists of close-set sharp longitudinal grooves with the ridges between them rounded and more or less beaded or nodulous. They are crossed by more or less evident lines of growth, which, however, are not necessarily coincident with the beading where present.

They are marked by strong, somewhat retractive axial ribs, which terminate at the posterior edge of the first supraperipheral keel, which is smooth. Of these ribs, 18 occur upon the second, 20 upon the third, 22 upon the fourth, and 27 upon the penultimate turn. In addition to the axial ribs the whorls are marked by four spiral keels, which equal the ribs in strength and render their junction nodulous. The spaces enclosed by the axial ribs and spiral cords are well impressed round pits.

This species differs from Fusiturricula fusinella by the obliquity of the ribs and the disparity in size between the peripheral spiral cords, which are quite equal and equally nodulous in F. fusinella. W.H. Dall (1908): Reports on the Dredging Operations off the West Coast of Central America to the Galapagos, to the West Coast of Mexico, and in the Gulf of California, in charge of Alexander Agassiz, carried on by the U. S. Fish Commission Steamer "Albatross," during 1891, Lieut. Commander Z. L. Tanner, U. S. N., Commanding. XXX VII.

The subsequent whorls number about six or seven. They are similarly sculptured: axial sculpture consists of numerous low slender flexuous riblets with wider interspaces, extending from the suture to the periphery and become obsolete on the base of the shell. These are crossed (between the sutures) by from four to six spiral subequal threads, of which those on the periphery are somewhat more prominent, and all are slightly nodulous where they override the ribleis. On the base there are about 15 of these threads with somewhat wider interspaces.

Behind the fasciole a stout ridge revolves a little in advance of the appressed edge of the whorl. The ridge is nodulous where it rides over the ribs of the preceding whorl . In front of the fasciole the ribs are crossed by two adjacent and four rather distant stout revolving threads, beside which there are four or five smaller threads on the siphonal canal, and in the interstices and on the fasciole extremely fine sharp revolving threads. All the large threads form nodules where they cross the ribs and these nodules are yellow.

The sculpture consists of subequidistant fine axial riblets, obsolete on the shoulder and below the periphery of the body whorl, 15 to 20 on the body-whorl. The interstices are of about the same width or slightly broader than the riblets. They are crossed and reticulated by fine spiral threads, 3 very fine and close together on the shoulder, 5 from the angle to the suture, occasionally with a few very fine interstitial threads, 15 to 20 on the body whorl. The crossing-points are sometimes slightly nodulous.

The spiral sculpture of, on the upper surface of the last whorl, two small and two strong spiral alternated ribs, one of the smaller just below the suture; a large spiral on the periphery and four on the base. These are crossed by numerous obliquely radiating threads, which make the early whorls coarsely reticulate with nodules at the intersections, while in the later whorls the radiations become less marked and the spirals more numerous and more conspicuously nodulous. The whorls are rounded, while the apex is a little blunt. The suture is distinct, not channelled.

The whorls are generally a little carinated on the upper surface, especially the earlier whorls, by one or two prominent spiral riblets. Below they are full and rounded, with a small but well-marked umbilicus. The radiating sculpture of the lines of growth is occasionally irregular so as to form faint waves, but usually inconspicuous. The spiral sculpture consists of fine close little-raised threads, with on the upper surface one and on the periphery another stronger thread or carination, seldom nodulous, and stronger on the earlier whorls.

They are ornamented by strong axial ribs, of which 18 occur upon the second and third and 20 upon the penultimate turn. In addition to the axial ribs the whorls are marked by four equal and equally spaced slender spiral cords, which are a little less strong than the ribs, and render the junction with these nodulous. The sutures are channeled. The periphery and base of the body whorl are well rounded, the latter marked by six equal spiral ords, which are about as wide as the spaces that separate them.

They are marked by four equal well incised, spiral lines between the sutures and numerous very retractive lines of growth, with a few feeble indications of axial ribs, at and near the summit, which renders the first and sometimes the second space between the incised lines below the summit feebly nodulous. The sutures are strongly impressed. The periphery and the base of the body whorl are somewhat inflated, well rounded, and marked by seven incised spiral lines, which decrease regularly in spacing from the periphery to the umbilical area. The aperture is broadly oval.

The length of the shell attains 17 mm, its diameter 6 mm. (Original description) The fusiform shell has a fairly broadened body whorl, but a very attenuate spire It contains 9 whorls, of which the two whorls in the protoconch are smooth, diaphanous, and globular. The remainder show strong, rounded, shining, nodulous longitudinal ribs, about eight in number on the penultimate and body whorls. The suture is strongly raised-plicate, and spirally furnished with regular raised revolving lines, chestnut in colour, thus contrasting with the paler ochreous brown surface.

These are moderately convex, with an impressed, not very oblique suture. The whorls of the spire are pretty strongly angulated or carinated a little above the middle by a revolving carina, which appears double at the summit, and slightly nodulous where it is crossed by the longitudinal lines. Above the carina there is a rather wide, sloping, flattened or slightly concave subsutural band, which is crossed by somewhat raised, moderately excurved lamellae, parallel with the lines of growth and with the sinus in the lip. There is also a rather faint revolving cingulus a little below the middle of the band.

The length of the shell attains 3 mm, its diameter 1.8 mm (Original description) The small, yellowish brown shell is broadly fusiform, It contains five whorls, including a prominent two-whorled protoconch, which is finely spirally lirate. The adult whorls are strongly angled about the upper third by a prominent spiral keel, which bears at regular intervals well developed spinose nodules, about 10 on the body whorl. Above to the suture the whorl is concavely hollowed, with a finely nodulous keel. Below the carina are two prominent keels, bearing numerous sharp nodules, connected somewhat irregularly above and below, with axial riblets.

The spiral sculpture on the early whorls comprise two sharp narrow little elevated threads at the periphery, three, less contiguous, above the fasciole, and one near the suture, neatly reticulated by the wrinkles and minutely nodulous at the intersections. The spirals over most of the shell are strap-like, flattened, narrow, and distinctly marked off from the impressed broader interspaces. On the body whorl there is a single smooth flat thread below the nodulated one next the suture, and two run in the middle of the fasciole. The peripheral thread has become single and much stronger than the others.

The large, strong shell is regularly conical, with a flattened base, and lacks an umbilicus, It is yellowish white or light yellow, with more or less numerous narrow, spiral bands of pale brown or dark brown, and with large squarish spots of bright rosy red on the spire. The nine or ten whorls are flattened, or concave, below the suture, which is not impressed. The body whorl has eight to ten conspicuous, raised, nodulous revolving ribs, of which three or four are much smaller and alternate with the larger ones. The strongest rib is just below the suture.

They are ornamented with somewhat retractive axial ribs, of which 14 occur upon the first, 16 upon the second, 18 upon the third, and 20 upon the penultimate turn. In addition to the axial ribs, the whorls are marked by four spiral cords between the sutures which are as strong as the ribs and render them strongly nodulous at their junction. The second of these ribs below the summit marks the angle of the shoulder. The spaces enclosed by the ribs and cords are strongly impressed oblong pits, the long axis of which coincides with the spiral sculpture.

The length of the shell attains 11.5 mm, its diameter 4.5 mm. (Original description) The small shell is waxen white, superficially resembling Oenopota granitica (W.H. Dall, 1919), but differing in the following particulars: It has one rib less; the two prominent spiral cords on the early whorls are strongly nodulous when they cross the ribs, especially the posterior cord, even on the body whorl. The spiral sculpture on the body whorl in front of the fasciole comprises 10 strong flattish cords, separated by very sharp, narrow grooves, with no spiral sculpture on the back of the siphonal canal, which is distinctly shorter.

They are marked by narrow decidedly elevated, retractive axial ribs, of which 16 occur upon the first and second, 18 upon the third, and 22 upon the penultimate turn. In addition to the ribs, the whorls are marked between the sutures by four spiral keels, which equal the ribs in strength and render them decidedly nodulous at their junction. The spaces enclosed by the ribs and cords are well impressed rectangular pits whose axis coincides with the spiral sculpture. The sutures are subchanneled, showing a portion of the first basal keel in the last two volutions.

They are marked by a strongly incised spiral line a little distance below the summit, and three feeble ones of which one is at the periphery, the other two dividing the space between those two into three equal areas. These lines, excepting the one near the summit, which is strong throughout, are best developed on the early whorls. In addition to the spiral sculpture, the whorls are marked between the sutures by strong lines of growth and indications of feeble axial ribs which tend to render the early whorls somewhat nodulous. The sutures are strongly impressed.

They are marked on all but the first whorl, which is but feebly sculptured, by strong, rounded, decidedly retractive axial ribs, of which 14 occur upon the second, 16 upon the third, and 20 upon the penultimate turn. In addition to the ribs, the whorls are marked between the sutures, by four low, broad, spiral bands, separated by narrow channels which render their junction with the ribs decidedly nodulous. On the last two whorls the peripheral cord is apparent in the strongly constricted suture. The periphery of the body whorl is marked by a strong cord.

The protoconch has a minute apex and a swollen smooth globular succeeding whorl. These are followed by a peripherally keeled whorl, the subsequent whorls. These develop into two and then three spiral flattish spiral cords, including the peripheral one and in front of it, while behind the keel the surface slopes flatly up to the oppressed suture only interrupted by obscure ridges due to the axial sculpture. On the body whorl in front of the anal fasciole there are about a dozen similar cords extending to the end of the siphonal canal with about equal channeled inter-spaces, the posterior two or three cords more or less nodulous at the intersections.

The nuclear whorls are smooth, turgid, the subsequent turns carrying a rounded low keel, usually in front of the middle of the whorls forming the pire, the area between which and the suture is flatly impressed, the whorl in front gently rounded. On some of the early whorls the keel is slightly undulated, but not regularly nodulous. Besides the lines of growth, both the fasciole and the anterior part of the whorl show indications under a lens of obscure regular distant spiral striae, and are also more or less marked with a faint vermicular reticulation of the surface. The distinct suture is not appressed.

The spiral sculpture of (on the early whorls one, later two, and on the body whorl three) strong, rather widely separated threads which are prominently nodulous where they cross the ribs and on the spire are feeble in the interspaces; suture appressed, obscure, the anal fasciole inconspicuous behind the first row of nodules ; on the base are 3 or 4 distant threads and on the siphonal canal a few feeble spirals. The axial sculpture (on the body whorl of about 15) consists of narrow sharp nearly vertical ribs with wider interspaces. The general surface between them shows more or less prominent incremental sculpture. The aperture is narrow.

Between this and the periphery the space is excavated. Above these there are about four (on the earlier whorls one or two) small raised spiral lines separated by much wider interspaces, nodulated with small but prominent nodules at the intersections with the radiating sculpture. All the sculpture grows fainter, and intercalary fine lines appear toward the aperture on the last whorl. The base of the shell has two strong nodulous spirals separated by a deep interspace, the inner one forming the umbilical margin. Outside of these 16-20 fine flattened spiral threads, with about equal interspaces, reach to the periphery and are hardly ruffled by the incremental lines.

The remainder of the shell is sculptured with fine revolving lines, subequal, about as wide as the interspaces, about eighteen at the beginning of the body whorl. These are crossed by slight plications, beginning near the suture, becoming nodulous on a single prominent thread a little way from the suture (which is thus made to appear somewhat channelled), becoming faint about the middle of the upper side of the whorl, and entirely disappearing before reaching the periphery. The revolving lines are fainter on the rounded base. The umbilicus is wide and funnel-shaped, bordered by a strong keel with about twenty-five rounded nodules.

The spiral sculpture consists of two strong cords with wider interspaces and a thud on which the suture is laid and which forms the margin of the base. There is also a small thread between the suture and the posterior cord and on the body whorl a similar thread in the interspaces. On the base there are six or seven smaller closer cords separated by obscurely channeled interspaces between the verge of a narrow umbilicus and the basal margin. The axial sculpture consists of (on the penultimate whorl about 20) retractive riblets extending from suture to periphery, with wider interspaces, slightly nodulous at the intersections with the spiral cords.

The protoconch is smooth white, pointed, drawn out. The sculpture consists of longitudinal ribs thirteen or fourteen on the body whorl, obsolete on the lower third of the whorl and not extending to the suture, below which is a smooth band only marked by oblique lines of growth. The ribs are slightly nodulous at their posterior terminations (where they are united by a slight carina) strong on the upper whorls, slightly flexuous on the convexity of the whorl. The whorl below the carina is marked by very faint grooves close together and passing over the ribs, stronger at the anterior end of the body whorl.

The whorls show a conspicuous shoulder, above which a slightly concave spirally striate anal fasciole extends to the appressed suture, which on the last whorl or two shows indications of a marginal thickening. The axial sculpture consists of (on the body whorl, about fifteen) protractive short riblets with subequal or slightly shorter interspaces apparently confined to the periphery: these are crossed by t\ro strong spiral threads, the posterior largest and forming oblong tumid nodules at the intersections. The anterior thread is also but less conspicuously nodulous or undulated. The rest of the surface is covered with fine spiral threads, of which there are three between the two large ones above mentioned.

The third is not far from the second, and surrounds the periphery, usually corresponding with the line of the suture. The second and third are usually the most elevated. On the base of the shell there are five or six strong, rounded, revolving ribs, part of them usually somewhat nodulous, separated by deep, concave interspaces, rather wider than he rib; one or two additional ones often appear in the umbilical opening, which is funnel-shaped and moderately large, but often partially obstructed by the reflected (turned outwards) edge of the inner lip. The interspaces between all the ribs are covered with close, slightly raised lines of growth, and usually with traces of a thin epidermis.

The shell contains about eight whorls, three of which form a chestnut-colored protoconch. About three whorls below the protoconch are covered with prominent, longitudinal ribs, which form a well marked shoulder and are crossed by several conspicuous, revolving cinguli and grooves, which render them decidedly nodulous. The subsutural band is broad, strongly concave, occupying nearly or quite half the breadth of the upper whorls, and is crossed by strongly receding, raised lines, parallel with the lines of growth of the sinus, but without spiral lines. The body whorl is large and swollen, covered throughout with very evident lines of growth, which are crossed, except on the subsutural band, by conspicuous, revolving cinguli, which are separated by spaces considerably exceeding their own breadth.

In front of the first band is a depression with two or three incised spiral lines, followed by a strong nodulous keel corresponding to the anal fasciole, in front of which again are (on the spire one, on the last whorl four) strong, simple, distant, spiral threads, of which the second is strongest and followed by the widest interval. The series is preceded by eight or ten smaller, closer, simple, spiral threads which extend to the end of the siphoanl canal. The axial sculpture consists of incremental lines and on the earlier whorls obscure wrinkles connected with the nodules on the keel, which number on the penultimate whorl about twenty-four and on the body whorl become obsolescent. The aperture is short and lunate.

The length of the shell attains 9.5 mm, its diameter 3.5 mm. (Original description) The waxen white shell has a vitreous white smooth rounded protoconch of nearly two whorls and eight subsequent sculptured whorls. The spiral sculpture consists of an undulated more or less nodulous narrow band in front of the suture, separated by the fasciole from an angulation, which in the upper whorls is peripheral, and on the body whorl forms a well marked shoulder. In front of this on the upper whorls are one to three, and on the body whorl between the angle and the anterior end of the siphonal canal about a dozen, small sharply elevated threads with much wider interspaces, threads which are, where they intersect the transverse ridges, modified by small sharp nodulations.

The suture is strongly appressed with a smooth narrow band in front of it and behind the somewhat constricted fasciole Other spiral sculpture consists of sharply incised lines, four or five on the spire between the sutures, equal and with wider equal rounded interspaces, and about 24 on the body whorl. The interspaces become more cord-like near the siphonal canal and sometimes feebly nodulous where the lines cut the ribs. The axial sculpture consists of (on the penultimate whorl about 18) feeble narrow ribs, stronger near the apex, obsolete on the body whorl, with wider interspaces, beginning in front of the fasciole, hardly reaching the base, and protractively oblique. There are also fine sharp incremental lines, chiefly evident in the depressions, but here and there finely reticulating the interspaces.

The spiral sculpture consists of fine even rounded elevated threads, nearly uniform all over the shell, about half as wide as the interspaces in most of which run an extremely fine intercalary thread. The primary threads average about eight in the breadth of a millimeter. The transverse sculpture, first, consists of very fine distinct uniform lines of growth about twice as numerous in the same space as the primary spiral threads, which last are beautifully reticulated and to some extent rendered nodulous, or rather minutely wavy, by the intersections; secondly, on the earlier whorls, consists of rather stout distant rounded riblets or waves seven or eight to a whorl, most distinct on the first whorl and entirely evanescent on the last two whorls. These are slightly oblique, and extend from the anterior margin of the anal fasciole to the suture in front.

The subsequent whorls are angular, very convex, separated by a linear, undulated suture, accompanied by a faint infrasutural rib, more conspicuous on upper whorls . The upper part of whorls is conspicuously excavated, the lower part contains strong, short, nodulous, oblique ribs, abruptly ending at the excavation, scarcely reaching the basal suture in the lower whorls. There are 3 faint, raised, spiral lirae in the excavation, crossed by elegantly curved, partly riblike striae, 4 to 5 stronger lirae crossing the ribs, with a few faint striae above them on the limit between ribs and excavation in the lower whorls. On the penultimate whorl, another liration appears at some distance above the suture, amounting to 3 rather remote, strong lirae on the body whorl, and a large number (about 20) on the basal part of the body whorl and siphonal canal.