22 DIVISION OF FISH AND GAME 



38a. Soft parts of dorsal and anal fins densely scaled. 



Halfmoon, Medialutia calif orniensis (page 91). 

 38b. Soft parts of dorsal and anal fins not scaled. 



Salt-water perch, family Embiotocidae (page 76). 

 39a. Color brilliant with horizontal stripes of red or orange and 

 blue. 

 40a. Vent well beyond middle of body excluding head and tail ; 

 25 or less anal rays. 



Rainbow perch, Hypsurus caryi (page 78) . 

 40b. Vent before middle of body excluding head and tail ; 27 or 

 more anal rays. 



Striped perch, Taeniotoca lateralis (page 79). 

 39b. Color variable, silver, dark or red but never striped hori- 

 zontally. 

 41a. Cluster of enlarged scales between pectoral and ventral 

 fins ; color mostly brownish. 



Black perch, Embiotoca jacksoni (page 77). 

 41b. No such cluster of scales. 



42a. Fifth or 6th dorsal spine as high or higher than the first 

 dorsal ray. 

 43a. Eye very large, about § the head length ; ventrals 

 with black tips. 



Walleyed perch, Ilyperprosopon argenteum (page 86) . 

 43b. Eye smaller, ventral not black-tipped. 



44a. Scales large, less than 50 in a row along the lateral 

 line. 

 45a. Color silvery with 3 vertical yellow stripes alter- 

 nating with broken black bars on the sides. 

 Shiner perch, Cymatognsler aggregota (page 80) . 

 45b. Color chiefly red or rose. 



46a. A distinct chocolate-brown spot on the back. 

 Pink perch, Zalembius rosaceus (page 84). 

 46b. No such spot, back mostly olive. 



Kelp perch, Brachyistius frenaiiis (page 85). 



44b. Scales small ; over 50 in a row along the lateral line. 



47a. Eye rather large, about § head, anal fin with 



black margin ; no reddish tinge on caudal and 



ventral fins. 



Salt-water perch, Tocichthijs ellipticus (not illus- 

 trated). 

 47b. Eye smaller ; no black margin on anal fin. 

 48a. Inky blotch on middle of anal fin. 



Salt-water perch, Hypocritichthys analis (not 

 illustrated) . 

 48b. No such blotch ; ventral, anal, and particularly 

 the caudal fin reddish. 



Redtail perch, Ilolconotus rhodoterus (not 

 illustrated;. 

 42b. Fii'st dorsal ray higher than 5th or 6th dorsal spines. 

 49a. Lips exceedingly enlarged and fleshy. 



Rubberlip perch, Rhacochilus toiroies (page 81). 

 49b. Lips not notably enlarged. 



50a. Tail deeply forked, caudal peduncle long and slender, 

 51a. First dorsal ray at least twice as high as last 

 dorsal spine. 



Pile perch, Damalichthys racca (page 82). 

 51b. First dorsal rays less than twice as high as last 

 dorsal spine. 

 52a. Ventral fins plain whitish. 



Pacific while perch, Phanerodon furcatus 

 (i)iige S3). 

 52h Ventral fins tipped with blackish. 



Salt-water perch, Phanerodon atripes (not 

 illustrated). 



