450 DEEP-SEA FISHES OF THE ATLANTIC BASIN. 



lidse of iibdoiui'U, its ba.st' lutliei- loiij;. Dor.sal tin begiuuiug above eye; caudal double 

 truncate; anal without .si)ine. Scales thin, deciduous, ctenoid on left side, c.ycloid on blind 

 side. Lateral lino simple, nearly straight. Size small. Genus apparently allied to Citha- 

 richthys, although tlie mouth is very small. [Jordan and Gilbert.) 



ETROPUS KIMOSUS, GuoDn ami Bean. (Figures 360, 361). 



Eirojms rimosiis, Goods aud Bean, Pioc. U. S. Nat. Mus., vm, 1885, 593. 



Body peai'-shaped, its height (54 millimeters) slightly exceeding half its length. 



Scales large, strongly pectinated on both sides, about 41 in the longitudinal series, 12 

 above and 14 below the lateral line. Lateral line equally developed on both sides, very 

 slightly curved above the pectoral. Head entirely covered with scales. Numerous small 

 supernumerary scales between the normal scales covering their surface. 



Length of head (24 millimeters) slightly less than one-fourth of the total length. 

 Snout very short, its length (3 millimeters) 8 times in that of head. Mouth very small, its 

 cleft less than diameter of orbit, its angle reaching about to vertical through anterior mar- 

 gin of lower eye. 



The length of the maxilla (.5 millimeters) somewhat less than one-fourth that of head. 

 Length of niaiidible considerably more than one-third of the same length. 



Teeth well developed on blind side in both ja;ws, also on the colored side of lower jaw 

 in front. 



Eyes moderate (7 millimeters), their diameter contained nearly .3i times in length of 

 head, placed in the same vertical, the upper eye close to the dorsal profile, and separated 

 from its mate by a space less than one-third of its own diameter. Interorbital ridge low. 



Nostrils in line with the interorbital ridge, each in a- short tube, the posterior being the 

 larger. The anterior nostril is equidistant from the tip of the snout and the lower orbit. 

 Dorsal fin commencing at a point upon the blind side of the snout in the vertical thnmgh 

 the anterior margin of the eye, containing 77-78 rays, the longest somewhat behind the 

 middle of the fin, its length about 7 times in. total length. 



Anal fin commencing under the base of the pectoral, composed of 61 rays, the longest 

 post-medial as long as the longest in the dorsal. Anal papilla prominent. 



Caudal fin rounded, the middle rays about as long tws the head. 



Pectorals noriually jilaced, that upon the colored side longest, equal in length to that 

 of the head without the snout. 



Ventral of eyed side on ridge of abdomen, its base rather long but not reaching anal 

 origin; that of blind side farther forward, its length equal to that of its mate, and a little 

 more than one-tenth of the total. Vent at the anal origin slightly lateral. 



Color, gray, hoary above, with a few irregularly placed indistinct brownish blotches, 

 none of which are larger than the eye. White below. 



Eadial formula: D. 77-78; A. 61; V. 6; P. 0-11; C. 17; scales, 41. 



The type is Cat. No. 37.332, 100 millimeters long; it is from station 2408, Albatross, N. 

 lat. 28° 28', W. Ion. 84° 2.5', depth 21 fathoms. 



CYCLOPSETTA, Gill. 



Cyclopsetta, Gill, Proc. U. S. Nat. Mus., 1888, 601. 



Psettines with the body oblong rhomboovate, covered with regularly imbricated mod- 

 erate cycloid scales; lateral line nearly rectilinear on both sides; snout convex; mouth very 

 large; jaws squarely truncated behind; teeth uniserial, tliose of upper jaws nioderate, of 

 lower jaw enlarged and largest at sides; dorsal and anal almost symmetrical, dorsal com- 

 mencing in front of eye on snout, scarcely deflected on blind side; caudal .slightly pedun- 

 culate and convex; pectorals subequal and with a subtrun<'ate free margin ; ventrals nearly 

 equal, the left on the preanal ridge, the right lateral, both with the inner rays connected by 

 membrane to the body; iuterbranchial meujbrane imperforate; gill rakers tubercular and 

 surmounted by blunt denticles. 



