64 CYPRINID^E. 



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 Itay. 



Hybopsis kentukiensis (Rafinesque). Horny-head ; 

 River Chub ; Jerker ; Indian Chub. 



Head 3%" to 4; depth 4 to 4^; eye 5%. D. 8; A. 7 or 8; scales 6-41-5, 

 about 18 before dorsal; teeth 1, 4-4, 1 or 1, 4-4, o, sometimes 4-4, in all Ohio 

 specimens examined they are 1, 4-4, 1. 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 cov- 

 ered with tubercles. Young with dark caudal spot. Length 6 to 9 inches. 



Well distributed over the state and generally common. Re- 

 corded by Kirtland. "Every stream in the state of Ohio," 

 Jordan; Hamilton 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 : KxoGLOSSTJM. 

 Exoglossum maxillmgua (Le Sueur). CuT-ups ; 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 flatfish above, with tumid 

 cheeks. Mouth peculiar, the mandible being contracted and incurved, its 



