1936] Schults: Keys to Fishes 189 



17b. Mouth oblique. 



19a. Snout to vent 5.5 times in length ; 

 pectoral 14 ; the upper edge of the 

 pectoral fin above the angle of the 

 mouth ; symphysis behind the front 

 of the eye. Range : Bering Sea to 

 Gulf of California. Marine. Rare. 

 ...305. Paraliparis cephalus Gilbert 



19b. Snout to vent 9.8 times in length ; 

 pectoral 16 ; depth 6 times in length ; 

 the upper edge of the pectoral fin 

 below the angle of the mouth ; 

 symphysis in front of the eye. 

 Range : Washington to California. 

 Marine. Rare. 

 306. Paraliparis mcnto Gilbert 



15b. Snout with barbels. 



20a. Gill slit extending down in front 

 of 5 pectoral rays ; pyloric caeca 

 7. Range : Bering Sea, Okhotsk 

 Sea and California. Marine. 



307. Rhinoliparis barbulifer 



Gilbert 



20b. Gill slit above pectoral fin ; py- 

 loric caeca 12. Range : Bering Sea 

 and Monterey Bay. Marine. Rare. 

 308. Rhinoliparis attenuatus Burke 



14b. Branchiostegals 5 ; vent forward on throat, 

 opening forward ; gill slit restricted to in 

 front of the pectoral fin ; pectoral lobes separ- 

 ated. Range : North Pacific from Hokkaido, 

 Japan, to southern California. Marine. Rare. 

 309. Nectoliparis pelagicus Gilbert and Burke 



Family 73. Embiotocidae. Viviparous perches. Surf-fishes 

 la. Scales large, about 38 (36 to 50) in lateral line. 



2a. Lower lip without frenum ; dorsal fin IX or X, 18 to 21 ; caudal peduncle 

 short and slender, least depth about S l / 2 in body. Range : Southern Alaska 

 to Todos Santos Bay, Lower California. Marine. Common. 



Perch. Shiner. Viviparous Perch 



310. Cymatogaster aggregatus Gibbons 



2b. Lower lip with frenum; dorsal fin VIII, 15 ; least depth of caudal peduncle 

 7 in body; depth 3 in body; head 3.3 in body. Range: Vancouver Island 

 to San Diego, California. Marine. Common. 

 311. Brachyistius frenatus Gill 



lb. Scales small, more than 50 in the lateral line. 



3a. Lower lip with a frenum, the groove not continuous across the tip of 

 chin; dorsal fin X or XI. 



