306 FISHES. 



** Mouth sub-inferior, rather small, the upper jaw the longer; 

 size not large; teeth 4 — 4, or 1, 4 — 4, 1. 



f Dorsal fin in advance of ventrals. 



a. Lateral line 36 to 40; head short; lips little developed; 

 teeth 1, 4—4, 1. 



3. C. amblops, (Raf.) Cope & Jordan. Big -Eyed 

 Chub. Head rather broad; eye large, 3 in head, greater 

 than the width of the broad interorbital space; snout 

 blunt; barbels well developed; mouth rather larger than 

 in the next; color olivaceous or bluish, sides siiverv, 

 often with a dusky band; D. I, 8; A. I, 8; lat. 1. 38. Qliio 

 Valley; resembles somewhat Cliola ariomma^ but has a 

 very different mouth. 



4. C. winchelli, (Grd.) Jor. Clear Chub. Head nar- 

 rower; eye large, 3 in head, much wider than the narrow 

 interorbital space; snout moderately blunt; barbels short; 

 colors darker, a dark lateral stripe. Tennessee River 

 and South, perhaps a variety of the preceding. (C. 

 hyaliniis^ Cope.) 



aa. Lateral line 45 to 50; long, slender species, with the head 

 elongate ; lips more developed ; teeth 4 — 4. 



5. C. dissimilis, (Kirt.) Cope. Spotted Shiner. 

 Pale olivaceous, sides bright silvery, with a bluish 

 lateral band, widened at intervals into spots; fins immac- 

 culate; depth 5 in length; head 4; eye large, 3^ in head; 

 D. I, 8; A. I, 7; lat. L 47 to 50; L. 6. Ohio Valley and 

 Lake region, not uncommon. 



ff Dorsal fin inserted distinctly behind ventrals; lips greatly 

 developed; a black blotch on last rays of dorsal. 



6. C. monachus, Cope. Solitary Chub. Form 

 elongate, as in Phenacohius ', a dark caudal spot; 

 eye small, 4 in head; lat. 1. 56. Tennessee R. Several 



