188 University of Washington Publications in Biology [Vol. 2. 



11a. Gill slit above the pectoral; pectoral with more than 

 25 rays ; disk smaller than the eye, rarely equal to it ; 

 usually distinctly cupped or triangular. 



12a. Caudal not forked ; pectoral distinctly notched ; 

 peritoneum black, rarely silvery and dotted; mouth 

 and gill cavity dusky to black ; no prickles. Range : 

 British Columbia to southern California. Marine. 

 Not rare. 

 298. Careproctus melanurus Gilbert 



12b. Caudal forked ; pectoral notch hardly evident ; depth 

 4.5 in length ; pyloric caeca 29. Range : Okhotsk 

 Sea, Bering Sea to off coast of Washington. Ma- 

 rine. 

 299. Careproctus cypselurus (Jordan and Gilbert) 



lib. Gill slit extending down in front of the pectoral fin. 



13a. Disk well developed, not over 4 in head; depth 

 of body not over 4 in length ; vent near disk. 

 Range: Off Queen Charlotte Islands, B. C. Ma- 

 rine. Rare. 

 300. Careproctus ovigerum (Gilbert) 



13b. Disk small, 7 to 9 in head; gill slit in front of 

 10 or more pectoral rays. Range : Southeastern 

 Alaska and British Columbia. Marine. 

 301. Careproctus gilberti Burke 



10b. Disk absent. 



14a. Branchiostegals 6 ; vent vertical ; gill slit at 

 least partly above the pectoral fin. 



15a. Snout without barbels. 



16a. Teeth trilobed ; gill slit in front of 4 pec- 

 toral rays ; pyloric caeca 13 to 18 ; pec- 

 toral rays 30 or more. Range : Alaska and 

 California. Marine. Rare. 

 302. Paraliparis dactylosus Gilbert 



16b. Teeth simple, conical and in bands ; mid- 

 dle pectoral rays not rudimentary; pector- 

 al with fewer than 30 rays. 



17a. Mouth horizontal; middle pectoral rays 

 widely spaced. 



18a. Gill slit extending down in front of 

 10 pectoral rays ; dorsal 56 ; anal 46. 

 Range: Alaska and California. Rare. 

 303. Paraliparis dcani Burke 



18b. Gill slit above pectoral fin ; pectoral 

 25 ; the upper edge on a level with the 

 upper margin of the eye ; color black, 

 including mouth and gill cavity. 

 Range: Bering Sea and Gulf of Cali- 

 fornia. Marine. 

 304. Paraliparis ulochir Gilbert 



