178 CONTRIBUTIONS TO NORTH AMERICAN ICHTHYOLOGY - IV. 



not reaching to tin- eye. Vent nils in advance of dorsal. Fins moderate. 

 Coloration plain in spirits, except the black caudal spot ; sides silvery. 

 Head 1. 1: depth ::;-;. D.S; A. 7; Lat.l.4G. llio Seco, Texas. (Girard.) 



(CiiiminUa iinlalii C.rard, Proc. Acad. Nat. Sci. Pliila. ls-51!, II 1 -. ami U. S. Pac. R. R. 

 Siu-v. x, -JG'J.) 



244. C. vcuusta (Gnl.) J. &G. 



Body slender, as in C. macrostoma. Head long and rather pointed, 

 the snout subconical. Month large, oblique, the maxillary scarcely 

 reaching to the eye. Eye large, 3.V in head. Fins moderate ; the dor- 

 sal behind ventrals. Coloration plain in spirits, except the caudal spot ; 

 sides mostly silvery. Head 4 J ; depth 4. D. 8 ; A. 8 ; scales 7-37-3 

 (30 in type of C. tc.rana). Rivers of Texas. 



(Cijprindla rcnusta and texana Girard, Proc. Acad. Nat. Sci. Pliila. ISjG, 1'J?, and. U. 

 S. Alex. Bemud. Surv. Iclith. 54,55.) 



ce. Dorsal fin elevated, witli a conspicuous black blotch on its upper posterior rays 



(obsolete in youni;- examples). 

 /. A conspicuous black spot at base of caudal. 



2 !>. C. calliura Jordan. 



P>ody elongated, compressed, elevated in the middle, the profile be- 

 fore the dorsal curved. Snout projecting, forming a decided angle. 

 Head convex above, densely tnbercnlate in the males. Muzzle rather 

 pointed, overhanging the oblique month. Eye 4 in head, less than muz- 

 zle and interorbital width. ])orsal fin inserted slightly behind ven- 

 t ra Is. Lateral line strongly decurved, usually forming an abrupt flexure 

 just in front of the ventrals. Color in spirits pale silvery, the dorsal and 

 caudal blotches very strongly marked. Head 4f; depth 4. B. 8; A. 

 S; scales 6-44-3 ; teeth 1,4-4, 1. L. 4i inches. Rivers of Alabama 

 and Louisiana. 



riin lid cdUlitra Jordan, Bull. U. S. Nat. Mus. x, 61, 1877.) 



_//. No Conspicuous block Spol :it base of randal fill. 



</. Trc:h without grinding surface. 



!. '. ivhipploi (Crd.) .Tor. & Gilb. 



IJody moderately elongate, snbfusiibrm. Caudal peduncle stontish. 

 Head shortish, rather ]iointed. Kye large, 4 in head. ]\louth little 

 ol>!i(|iie, the lower jaw included, maxillary reaching to anterior rim of 

 the orbit ; upper lip on a line with lower border of orbit. Dorsal fin 

 \ery nearly opposite ventrals, greatly elevated, its height in the male 

 more than one fourth the length; anal fin large. Lateral line little de- 

 curved. Toloration in alcohol plain, except the conspicuous dorsal 



