CYPRINIDA. 43 
Genus: CAMPOSTOMA. 
Campostoma anomalum (Rafinesque). STONE-ROLLER; 
STEEL-BACKED CHUB; MAMMY ; DOUGH-BELLY. 
This species is most easily distinguished by an examination of the intes- 
tine, which is very long and is wound in many convolutions about the air- 
bladder. This arrangement is peculiar to this genus among all known fishes. 
/ 
Head 4; depth 42; eye 5 to 5% in head; D. 8; A. 7; scales 7-48-6; teeth 4-4. 
Body stoutish. Snout somewhat decurved, mouthinferior. Color brownish, 
almost black in adult breeding males; sides brassy, irregularly mottled with 
dark olivaceous or brown; fins usually plain, in breeding males the dorsal is 
tinged with orange, a black bar through its middle, other fins more or less 
tinged with orange. Entire dorsum of breeding males covered with tuber- 
cles. Young with a dark lateral band extending onto gill covers and between 
eye and tip of snout. Length 6 to 8 inches. 
A very abundant and widely distributed species, generally 
most abundant in small streams and on ripples of larger ones. 
First recorded for the state by Kirtland under the name -xog/os- 
sum lesueurianum ; given by Jordan as ‘‘ extremely abundant in 
every stream in the state’’; Hamilton County, ‘‘ abundant in 
every stream explored,’’ Henshall, 1888 ; Lorain County, ‘‘ com- 
mon in most of our streams,’’ McCormick, 1892; Franklin 
County, ‘‘ very abundant everywhere,’’ Williamson and Osburn, 
1897 ; Big Jelloway creek system, ‘‘ apparently the most abund- 
ant species,”’ Parker, Williamson and Osburn, 1898; recorded 
for many places in the Maumee river system (not taken in St. 
Mary’s river) by Kirsch, 1893; Ohio river and Ice creek at 
Ironton, Huron river at Milan, Ashtabula creek at Ashtabula, 
Wabash river at Celina, Stillwater and Wolf creeks near Dayton, 
north fork of Licking river at Newark, R. C. Osburn, 1899; 
Niggermill Run at Salem, E. B. Williamson, 1900; Cuyahoga 
river at Kent and Hawkins, Breakneck creek at Kent, Chippewa 
lake, Summit lake, Grand river at Painesville, Chagrin river at 
Willoughby, Wheeling creek at Bridgeport, Ohio river and 
McMahon creek at Bellaire, Licking reservoir, R. C. Osburn, 
1900. 
