164 BULLETIN 150, UNITED STATES NATIONAL MUSEUM 



Ni. Color pale; skin transparent. 



0^. Mouth and gill cavity pale; peritoneum dotted. 

 Pi. D. 56; A. 46; gill slit in front of 10 pectoral 



rays; southeast coast of Alaska deani. 



P2. D. 63; A 56; giU slit?; Okhotsk Sea..entochloris. 

 O^. Mouth and gill cavity black; peritoneum black. 



melanobranchus. 

 N2. Color black. 



Q'. Teeth conical, sharp ulochir. 



Q-. Teeth stout, blunt atramentetus. 



L". Middle pectoral rays rudimentary; pores on the head 

 enlarged. 



R^ Stomach pale; gill slit? latifrons. 



R*. Stomach black ; gill slit extending down in 

 front of 13 pectoral rays_-.holomelas. 

 K2. Mouth at an angle. 



S'. Symphysis of pectorals behind front of 



eye cephalus. 



S-. Symphysis of pectoral in front of eye. 



mento. 

 J^. Teeth in a single row, stout. 



T'. Color rose red, fins and snout largely 



black rosaceus. 



T2. Color blackish. 



U'. Gulf of California grandiceps. 



U-. Off Panama attenuatus. 



PARALIPAUIS DACTYLOSUS Gilbert 



Paraliparis dactylosus Gilbert, 1896, p. 469, pi. 34. — Gilbert and Burke, 

 1912a, p. 82. 



Ty^e.—^o. 48616, U.S.N.M.; Alhatross Station 3112, off Cali- 

 fornia; depth 29G fathoms. Length about 90 mm. 



Distribution. — Coast of Cahfornia and among the Aleutian Islands, 

 Albatross Stations 3112 and 4781; depth 296-482 fathoms. The 

 specimen from Station 4781, Bering Sea, is doubtfully placed with 

 this species. Four specimens examined. 



RelaiionsMps. — P. dactylosus differs from all the other species of the 

 genus in the trilobed teeth. In the character of the teeth, number of 

 pectoral rays, and pyloric coeca, this species is the most generalized 

 of the genus. 



Description oj type (mutilated). — Body deepest at the nape; the 

 dorsal outline descending very rapidly for a short distance, then 

 gradually to the attenuate tail. Head moderate; cheeks nearly 

 vertical; profile gradual from occiput to snout, then vertical to the 

 lips. Mouth narrow, the angle reaching under front of pupil. Teeth 

 short, stout, blunt, weakly trilobed, in moderate bands, arranged in 

 eight oblique rows. Snout deep, abrupt. No nostril tube evident. E3"e 

 large, 3.3 in head; black; pupil large, oval. Gill slit described as 

 extending down in front of three or four pectoral rays. Pores? 

 Pyloric coeca 13, equal to the eye. 



