With a dusky or dark band or stripe along each side; scale count not so 



218. 



218. Scale count about 80; peritoneum black; three inches long; northeastern 



and north-central states 



Pfnlle neogaea (Cope) Bronze Minnow 

 Scale count about 40 to 45; about two and one-half inches long; Tennes' 

 see Valley 



Hermtremia vittata Cope 



219. Lower jaw projecting well beyond the upper; color greenish, with a 



dark band along each side; males acquiring red coloring in the breed' 



ing season; about five inches long; eastern and central U. S. 220. 



Jaws almost equal or with the upper longer than the lower; color various; 



western species 221. 



220. Scale count about 50; Atlantic states 



Clmostomus vandoisulus (C. 5? V.) Rosy Dace 

 Scale count about 70; upper Mississippi Valley area 



Clinostomus elongatus (Kirtland) Red-sided Shiner 



221. Eye large (head less than four and one-half times as long as the diameter 



of the eye) ; anal fin long, often with more than nine rays; adults three 



to six inches long 222. 



Eye smaller in proportion to head; anal fin short, often with less than 



nine rays; about a foot long 225. 



222. Anal rays usually sixteen; with a dark band along each side; breeding 



males with red coloring; Montana westward 



Richardsomns balteatus (Richardson) Red-sided Bream 

 (Leuciscus balteatus (Richardson) ) 

 Anal rays usually about eleven; color various 223. 



223. Scale count about 80; color olivaceous and silvery; Utah 



Cheonda copei J. & G. Leather-sided Minnow 

 (Leuciscus copei (J. ^ G.) ) 

 Scale count 50 to 60 224. 



224. With two dark bands along each side, with a reddish one between; 



Nevada to California 



Cheonda egregia (Girard) 

 (Leuciscus egregia (Girard) ) 

 With silvery bands along each side, with a red (males) or dark band 

 between; Utah and Idaho area 



Cheonda hydrophlox (Cope) Po-he-wa 

 (Leuciscus hydrophlox (Cope) ) 



225. Caudal peduncle about as deep as the head; color brownish, white spot- 



ted; California 



Sihoma crasskauda (B. &' G.) Sacramento Chub 

 Caudal peduncle less deep in proportion to head; color blackish, white 

 spotted; Utah and Yellowstone area (Several species, of which the 

 most widely distributed is given.) 



Tigoma atraria (Girard) Great Chub 

 (Leuciscus lineatus (Girard) ) 



283 



