46 THE FISHES OF OHIO. 



in great numbers in every stream," Williamson and Osburn, 

 1897 ; Knox Count)', abundant in every stream of the Big Jellow- 

 way creek sj'stem, Parker, Williamson and Osburn, 1898 ; Ohio 

 river and Ice creek at Ironton, Huron river at Milan, Sandusky 

 Bay, Ashtabula creek at Ashtabula, Wabash river at Celina, 

 Stillwater and Wolf creeks near Dayton, North, Fork of Licking 

 river near Newark, R. C. Osburn, 1899 ; Niggermill Run at 

 Salem, Mahoning river, B. B. Williamson, 1900 ; Pippin lake, 

 Chippewa lake, Summit lake, Cuyahoga river at Kent and Haw- 

 kins, Breakneck creek at Kent, Grand river at Painesville, Cha- 

 grin river at Willoughby, Wheeling creek at Bridgeport, Ohio 

 river and McMahon's creek at Bellaire, Licking reservoir, R. C. 

 Osburn, 1900. 



Genus: SemoTieus. 



Semotilus atromaculatus (Mitchill). Horned Dace; Chub. 



Head 334'; depth 4; eye 5 to 5^. D. 7; A. 8; scales 9-55 to 60-6, about 

 30 in front of dorsal; teeth 2, 5-4, 2. Head large and heavy, broad and 

 rounded above; snout broad; mouth broad, oblique; a small barbel on the 

 maxillary some distance above its posterior end, not evident in young speci- 

 mens. Body stout, arched in front of dorsal. Dorsal inserted behind ven- 

 trals. Color dusky olivaceous or bluish above, paler below; sides with a 

 brassy luster; an indistinct lateral band and caudal spot (these markings 

 distinct in young). Dorsal with a black spot at its base anterior^. Sides 

 of head and lower fins rosy in breeding males. These have also the snout 

 covered with tubercles. Length 10 inches. 



A widely distributed species, occurring abundanth^ in brooks 

 throughout the state, less commonfy in the larger streams, and 

 rarely in lakes. In seining up stream the increase in number of 

 individuals of this species as the headwaters are approached is 

 very noticeable. Kirtland, following Rafmesque, recorded it for 

 the state as two species, 5". dorsalis and 5". cephahis. Both are 

 synonyms of 5*. atromaculatus. Hamilton Count} 7 , "abundant in 

 all streams," Henshall, 1888 ; Lorain County, " abundant in most 

 of the streams," MeCormick, 1892; " generally distributed 

 throughout the Maumee river basin," Kirsch, 1893 '> Franklin 

 County, abundant in all streams, Williamson and Osburn, 1897 '■> 

 Knox County, Big Jelloway creek s} 7 stem, Parker, Williamson 



