31. CYPRINID^E CERAT1CHTHYS. 213 



tebral baud : a brown lateral shade. Head 3f ; depth 4|. D. 8; A. 7; 

 scales G-40-3 ; teeth 4-4. L. 31 inches. One specimen known, from 

 Couestoga River, Pennsylvania. Perhaps a variation of the preceding. 

 (Cope.) 



(Cope, Proc. Acad. Nat. Sci. Phila. 1864, 277; Giinther, vii, 179.) 



32. C. syiaimcfriciis (Baird & Girard) J. & G. 



Body elongate, slender, moderately compressed, not elevated. Head 

 short, rather slender and pointed. Mouth small, little oblique, the lower 

 jaw included. Eye large, anterior, longer than snout, 3 in head. Bar- 

 bel small, but evident. Scales small, rather loosely imbricated. Lat- 

 eral line strongly decurved.. Dorsal slightly behind ventrals. Coloration 

 pale ; scales dotted with black ; cheeks silvery. Head 4 ; depth 6. D. 

 8 ; A. 8 ; scales 9-58-4 ; teeth 4-4, without grinding surface. L. 6 inches. 

 Rivers of California. 



(Pogonichtliyx symmetricus B. & G. Proc. Acad. Nat. Sci. Phila. 1854, 136 : Leucosomus 

 symntetricus Giinther, vii, 267.) 



** Species of small size, with the mouth subinferior and horizontal; the dorsal fin in- 

 serted slightly ^n front of the ventrals, and the scales generally large and 

 silvery. (Hybopsis Agassis!.*) 

 6. Teeth two-rowed. 



329. C. cumiiigi Giinther. 



Barbels minute. Eye entirely in the anterior half of the length of the 

 head, and nearly as long as the snout, which is obtuse, rounded, convex, 

 the mouth being subinferior. Tnterorbital space convex, as wide as the 

 orbit. Suborbital ring extremely narrow. Origin of dorsal fin a little 

 behind ventrals, somewhat nearer root of caudal than end of snout. 

 Pectorals not reaching ventrals. A grayish silvery band from gill- 

 opening to the root of caudal, where it terminates in a black spot. 

 Head 41 : body 5. D. 8 ; A. 8 ; scales G-45-6 5 teeth one-rowed '? 

 L. 3^ inches. (Giinther.) "California"? 



(Giinlher, vii. 177.) 



330. C. Iliccns Jordan. 



Body elongate, compressed, the back somewhat elevated from the oc- 

 ciput to the base of dorsal, thence rapidly declined to the long and 

 slender caudal peduncle. Head short, compressed, the cheeks nearly 

 vertical. Interorbital space rather broad and flat, somewhat grooved. 

 Eye very large, circular, high up, placed nearly midway of the length 

 of the head, its diameter about equal to the length of the snout and 



*Aga.ssiz, Aincr. .Touni. Sci. Arts, 1854. :>;">H : t.vjx-' ETybopsis gracilia A.g. (i'Qoc, gibbous; 







