46 THE FISHES OF OHIO. 
in great numbers in every stream,’’ Williamson and Osburn, 
1897 ; Knox County, abundant in every stream of the Big Jellow- 
way creek system, 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, E. 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: SEMOTILUS. 
Semotilus atromaculatus (Mitchill), HorRNED DacE; CHUB. 
Head 334; depth 4; eye 5 to5%. 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 anteriorly. Sides 
of head and lower fins rosy in breeding males. These have also the snout 
covered with tubercles. Length 1o inches. 
A widely distributed species, occurring abundantly in brooks 
throughout the state, less commonly 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 Rafinesque, recorded it for 
the state as two species, S. dorsalis and S. cephalus. Both are 
synonyms of S. atromaculatus. Hamilton County, ‘‘ abundant in 
all streams,’’ Henshall, 1888 ; Lorain County, ‘‘ abundant in most 
of the streams,’’ McCormick, 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 system, Parker, Williamson 
