430 yj^ Jr FISHES FROM FA CIFIC OCEAN— GILBEB T # CRAMER, tol. xix. 



This species is closely related to Trachonurus viUosiis, CTiintlier, but 

 ditt'ers from that in being less slender, in its larger eye, larger month, 

 longer barbel, number of dorsal spines and pectoral rays, and in the 

 munber, character, and ariangement of the spinelets of the scales. 



Two specimens, Hi inches long, from station 3474; 375 fathoms. 



Typc.—So. 47980, U.S.N.M. 



CHALINURA CTENOMELAS, new species. 

 (Plate XLA', fig. 2.) 



HeadSi; depth (>§; B. 7. First dorsal I. 10 to I. IL': i^ectorals 21; 

 ventralsO to 10. 



ITead cavernous, compressed, cheeks nearly vertical; snout broadly 

 triangular, tapering to a blunt point, short, i)r()iecting very little beyond 

 mouth, 1^ in orbit, its tij) nearly at the level of the upper margin of the 

 orbits. luterorbital space slightly convex, without prominent ridges, 

 1^ in diameter of orbit, a slight infraorbital ridge extending from tip of 

 snout to below i)osterior i)art of orbit, 3Iouth lateral, obli(jue, slightly 

 overpassed by the snout, maxillary reaching nearly to vertical from 

 hinder edge of pupil, 2J lu head. Premaxillary nearly as long as max- 

 illary, heterodont, with an outer row of enlarged, widely- set curved 

 teeth, and an inner villiform band. Mandibular teeth in a very narrow 

 band, smaller and more closely set than the outer premaxillary series. 

 Orbit elliptical, large, 23 to 3 in head. Posterior edge of preoi)ercle 

 nearly vertical, a little incurved. Length of barbel 1 to 1^ in diameter 

 of orbit. Gill membranes narrowly united, joined to the isthmus with 

 a narrow free fold behind. Length of anterior gill slit equal to inter- 

 orbital width. Body much compressed, its greatest width less than 

 one half the depth. Base of first dorsal elevated, oblique, its front pro- 

 jecting. Scales somewhat deciduous, of juoderate size, with lo to 20 

 sharp, slender spinelets, not in definite series, those on the scales of 

 ui^per side of head and back and abdominal region mostly black. 

 Whole snout, interorbital space, cheeks, opercles, and under side of 

 lower jaw scaly; 10 rows between lateral line and origin of first dor- 

 sal. Second dorsal spine somewhat elongated, with 25 or 30 small 

 serrations. Base of first dorsal equal to interorbital space; distance 

 between the first and second dorsals twice or a little more than twice 

 the base of the former. Distam-e from tip of snout to origin of anal 

 about 4 in total length. Pectorals in axis of body a little more than 

 half length of head. Ventral rays reaching a little beyond origin of 

 anal, the outer rays produced into a short filament. Vent but little 

 behind base of ventrals, distant from tliem about one-third ifs distance 

 from front of anal. Distaiuie between vent and isthmus more than half 

 length of head. 



Color (ill alcohol). — Ui)per one-third of trunk and tail brownish; 

 cheeks and lower two-thirds of sides silver^-; sides and tail si)eckled 



