64 CYPRINID. 
County, ‘‘common in Little Miami river and Clough creek,’” 
Henshall, 1888; Lorain County, Beaver creek and Lake Erie, 
McCormick, 1892; Lake Erie near Sandusky, R. C. Osburn, 
1900. Dead ones are frequently thrown upon the beach by the 
waves at Sandusky ; not noticed in Sandusky Bay. 
Hybopsis kentukiensis (Rafinesque). HORNY-HEAD; 
RIVER CHUB; JERKER; INDIAN CHUB. 
Head 334 to 4; depth 4 to 44%; eye 54%. D.8; A.7 or 8; scales 6-41-5, 
about 18 before dorsal; teeth I, 4-4, I or I, 4-4, 0, sometimes 4-4, in all Ohio. 
specimens examined they are I, 4-4, I. Body rather robust, little elevated, 
little compressed. Head large, broadly rounded above; snout conical, blunt- 
ish; mouth large, nearly terminal; barbel evident. Dorsal inserted slightly 
behind ventrals. Color dusky or bluish or greenish olive above, sometimes 
with brassy luster, pale but not silvery below; sometimes with a clear, grass 
green lateral band in life; fins all plain, tinged with dull orange. Breeding 
males have the belly tinged with rosy, and a crimson spot on side of head 
behind eye, and have the top of the head swollen into a crest which is covy- 
ered with tubercles. Young with dark caudal spot. Length 6 to g inches. 
Well distributed over the state and generally common. Re- 
corded by Kirtland. ‘‘Every stream in the state of Ohio,”’ 
Jordan; Hamiltcn County, ‘‘ Little Miami river,’’ Henshall, 
1888: Lorain County, ‘‘ very common in larger streams,”’ 
McCormick, 1892; Maumee river system in Ohio, ‘‘ every point 
in every stream examined,’’ Kirsch, 1893; Franklin County, 
common in larger streams, July 16 given as breeding date, Will- 
iamson and Osburn, 1897; Big Jelloway creek system, Knox 
County, abundant, May 23 noted as a breeding date, Parker, 
Williamson and Osburn, 1898, Ohio river at Ironton, Huron 
river at Milan, Ashtabula creek at Ashtabula, Wabash river at 
Celina, Stillwater and Wolf creeks at Dayton, North Fork of 
Licking River at Newark, R. C. Osburn, 1899; Cuyahoga river 
at Kent and Hawkins, Grand river at Painesville, Chagrin river 
at Willoughby, Wheeling creek at Bridgeport, Ohio river at 
Bellaire, R. C. Osburn, 1900. 
Genus: EXOGLOSSUM. 
Exoglossum maxillingua (Le Sueur). CumT-Lips; NIGGER CHUB. 
Head 4; depth 4%. D. 8; A. 7; scales 8-53-5; teeth 1, 4-4, 1. Body 
rather stout, little compressed. Head broad and flattish above, with tumid 
cheeks. Mouth peculiar, the mandible being contracted and incurved, its 
