31. CYPRINID^ CERATICHTHYS. 
217 
Head 3f ; depth 5J. D. 8 : A. 85 Lat. 1. 44. L. 2 inches. Milk Eiver, 
Montana. [Girard.) 
[Gobio gelidus Grd. Proc. Acad. Nat. Sci. Phila. 1856, 188, and U. S. Pac. R. R. Surv. 
248.) 
*■** Species of small size, with the mouth subinferior and horizontal, with thickened 
lips; the dorsal fin inserted slightly behind the ventrals, usually with a black 
blotch on its last rays; scales rather large, silvery. 
33S. C. labrosus Cope. 
Body slender, little compressed, the back not elevated. Head long, 
gently decurved to the muzzle, which scarcely overhangs the month. 
Mouth entirely horizontal, the maxillary reaching the orbit. Eye 3| in 
head. Dorsal inserted slightly behind origin of ventrals (not directly 
over, as stated in original description). Lips thickened. Barbels very 
long. Color silvery 5 sides sometimes with vague, dusty cross-bars. 
Head 4i; depth 5|. D. 8 ; A. 8 ; scales 6-34-4; teeth 1, 4-4, 1. L. 2^ 
inches. Catawba Eiver, North Carolina. [Cope.) 
(Cope, Proc. Amer. Phil. Soc. Phila. 1870, 458.) 
339. C. zaiseiiiiis Jordan & Brayton. 
Body long and slender, little compressed. Head rather long, narrow, 
aud pointed, very slender in young specimens, stouter in adults. Snout 
decurved in profile, an angle in front of the nostrils Muzzle long, over- 
hanging the large mouth. Lips much thickened, the lower with a con- 
spicuous internal fringe of papillm. Barbels extremely long, longer 
than in any other of our Cyprinidw, their length more than half the 
diameter of the eye. Eye moderate, nearly median, 3^ in head. Scales 
moderate, closely imbricated, 16 in front of dorsal. Lateral line slightly 
decurved anteriorly. Fins rather small. Caudal deeply forked, its pe- 
duncle long and slender. Coloration pale; a small, round black spot at 
base of caudal ; dorsal scales dark-edged ; a dark lateral streak, obso- 
lete anteriorly; large specimens with a large dark patch on the last 
rays of the dorsal, as in Gliola analostana; base of the caudal with dark 
points; males in spring with the head aud neck profusely tuberculate 
aud the fins flushed with crimson. Head 4|; depth 4^. D. 8 ; A. 7; 
scales 5-40-3 ; teeth 1, 4-4, 1 . L. 3 inches. Saluda Eiver, South Carolina. 
(Jordau & Brayton, Bull. U. S. Nat. Mus. xii, 25, 1878.) 
340. C. inoaiacliiis Cope. 
Body slender, somewhat corai)ressed, not much elevated. Head long 
and rather slender, flattish above, with projecting muzzle. Mouth in- 
terior, horizontal, small, the maxillary not reaching the eye, which is 
