REVISION OF THE FISH FAMILY LIPARIDAE 127 



CAREPROCTUS CYPSELURUS (Jordan and Gilbert) 



Prognurus cypselurus Jordan and Gilbert, 1898, in Jordan and Evermann, 

 1898, p. 2866; 1899, p. 478, pi. 77. — Evermann and Goldsborough, 1907, 

 p. 333, pi. 20. 



Careprodus cyptehirus Gilbert and Burke 19125, p. 362. 



Type.— Male, No. 48232, U.S.N.M.; Albatross Station 3634, north 

 of Unalaska, Bering Sea; depth 664 fathoms. Length 211 mm. 



■''S-' 



Figure 47.— Careproctus cypselurus, showing forked caudal 



Distrihution. — North Pacific off the coast of Washington, Bering 

 Sea, and the Okhotsk Sea; Albatross Stations 3074, 3634, 4797, 5015; 

 depth 510-887 fathoms. Four specimens examined. 



BelationsMps. — C. cypselurus bears a close resemblance to C. mela- 

 nurus. The forked caudal of C. cypselurus serves to distinguish the 

 two species. C. cypselurus bears a closer resemblance to C. furcellus. 

 It can be distinguished from the latter species by the more elongate 

 body; the eye and disk appear to be smaller, the gill slit larger, the 

 number of coeca less, and the pectoral slightly notched. 



Figure 48.— Careproctus cypselurus. Teeth from a specimen- 

 taken OFF Kamchatka 



Synopsis. — Dorsal 58; anal 54; pectoral 33; pyloric coeca 29-32. 

 Depth 4.4-5.2 in length without caudal; head 4.4-4.7. Eye 4-4.7 in 

 head; disk smaller, 4.8-6.1. Body moderately heavy anteriorly, at- 

 tenuate posteriorly. Head broad and heavy. Teeth rather short 

 and stout, simple or a few with the lateral lobes faintly indicated. 

 Gill slit above pectoral. Caudal deeply forked. Pectoral fin with a 

 very shallow notch; the lower lobe 1.8 in the head. Disk triangular, 

 the posterior margin folded over. Anterior part of body and head 

 pale to dusky; posterior part of body black; mouth and gill cavity 

 dusky; peritoneum blackish. Four specimens known, reaching a 

 length of 260 mm. 



