yo VERTEBRATE ANIMALS OF THE UNITED STATES 



male; rays of anal tin 9; scales 12 or 13-52 to 56-6 to 8: northern Nevada; 

 very common in Lake Tahoe. 



C. hydrophlox (Cope). Length 125; head 4.3; depth 4; color dusky, 

 with a dark lateral band between 2 silvery ones; in males the dark band 

 and belly being red; rays of dorsal tin 9; anal 10 to 13; scales 12-58-5: 

 Salt Lake basin; Snake River; very common. 



22. Richardsonius Girard. Similar to C//co«-Ja; anal fin very long: 

 4 species. 



R. halteatus (Richardson). Length 150 mm.; head 4.5; depth 3.25; 

 color plain, usually with a dark lateral band; rays of dorsal fin 10; anal 

 II to 22; scales 13-55 to 63-6; body compressed: Columbia basin and 

 streams entering Puget Sound; southeastern Oregon; eastward to 

 Montana; common. 



23. Clinostomus Girard. Lateral line complete; mouth very 

 wide, the lower jaw much projecting; dorsal behind ventrals: 2 species. 



C. elongatus (Kirtland). Shiner. Length 125 mm.; head 4; depth 

 5 ; color dark bluish, mottled with paler; a broad black lateral band, the 

 anterior half of which is crimson in the spring in males; rays of anal fin 

 9 ; scales 10-70-5 ; head long; mouth large : region of the Great Lakes and 

 upper Mississippi Valley; common in clear streams northwards. 



C. vandoisuliis Cuvier & Valenciennes. Length 125 mm.; head 3.6; 

 depth 4.75; color bluish green, mottled; a dark lateral band; males in 

 spring bright red anteriorly; rays of dorsal tin 9; scales 48 to 53 : streams 

 about Chesapeake Bay to Georgia; common in clear, swift streams. 



24. Pfrille Jordan. Lateral line incomplete; scales minute; body 

 plump: I species. 



P. neogcBus (Cope). Length 75 mm. ; head 4; depth 4.25 ; color dusky 

 above, with a dark lateral band ; in spring belly and lower fins crimson in 

 males; lateral line incomplete; teeth 2, 4-5, 2; scales 18-80-10; head 

 very large: region of the Great Lakes and upper Mississippi Valley; 

 rare. 



25. Margariscus Cockerell. Lateral line incomplete; maxillary 

 mostly with a small barbel; dorsal behind ventrals: 2 species. 



M. margarila (Cope). Length 75 mm.; head 4; depth 4.25; color 

 dusky olive above; sides silvery; belly white, males crimson in spring; 

 rays of anal fin 9; scales punctate, 11-52 to 58-8; lateral line more or less 

 incomplete; snout very blunt: Susquehanna to the James; not common, 



26. Hemitremia Cope. Lateral line incomplete ; no barbel present : 

 2 species. 



H. vittata Cope. Length 60 mm.; head and depth 4; color dark 

 above; a black lateral band; males scarlet in spring; a small black spot 



