270 Fishes of the Ohio 
verse sulcation. Lips of the female large and prominent; 
those of the male smaller. 
Body short, thick, and slightly compressed on the sides. 
Dorsal fin emarginate, quadrangular, the angles rounded. 
The tip extends nearly as far back as the vent. 
Caudal fin large, bilobed, the upper lobe narrower, longer, 
and falcate. 
Anal fim oval-acuminate, and reaching the base of the 
caudal. . 
Ventral fin extends beyond the base of the dorsal. 
Pectoral fim attains near to the dorsal, but not to the 
ventral, as described by Rafinesque. 
Length, from one to two feet. 
Color. The body and head brownish above, sides and ab- 
domen silvery. Dorsal and caudal fins olive, anal reddish, 
ventral and pectoral orange-colored. . 
Hab. Ohio river, and most of its tributaries. 
D: 17; C.929:; A.8;; V.—— P. 15 rays. The number 
differs in different specimens. —__ gib 
Observations. A superficial observer would hardly distin- 
guish this species from the Red-Horse Sucker (C. Duquesnii) 
yet its specific characters are evident, and are permanently 
established. The deep, transverse 'suleation before the eye» 
the elevated protuberance on the. nose, and the silvery lustre 
of the sides and abdomen will, under all circumstances, dis- 
inguish it. Es pints 
The drawing was made from a female eighteen inches 1n 
length. The males are smaller, more elongate, and less gib- 
” 
bous on the back and forehead. x id 
This species is common, and is taken in great quantities by 
means of weirs, seines, and sometimes with a hook. Its ses 
is soft, tasteless, and abounding with numerous small bones. 
It does not migrate from the small streams during the winter. 
