44 THE FISHES OF OHIO. 
Genus: CHROSOMUS. 
Chrosomus erythrogaster Rafinesque. RED-BELLIED DACE. 
Head 4; depth 4; eye 3%. OD. 8; A. 8; teeth 5-5; scales 16-85-10. 
Body rather elongate, the head pointed; mouth small, terminal, somewhat 
oblique. Lateral line developed backward about as far as the dorsal fin. 
Color above, brownish; a black vertebral line, bordered on either side by a 
row of black dots; sides creamy white, bordered above and below witha 
black band, the lower the wider and extending forward through eye; under 
parts white, in breeding males entirely suffused with vermillion; fins all 
bright sulphur yellow, the dorsal with a bright red spot at its base, anteriorly; 
females and young less brilliantly colored. Length 2 to 3 inches. 
The Red-bellied Dace is widely distributed and is generally 
abundant where found, but it is strictly a ‘‘ brook species,’’ being 
confined to small clear streams and spring runs. Recorded for 
the state by Dr. Kirtland ; Lorain County, ‘‘ I have found them 
in but one stream, Spring brook,’’ McCormick, 1892 ; ‘“‘ collected 
by Prof. Meek in Lost creek, near Defiance,’’ Kirsch, 1893 ; 
Franklin County, Grant’s Run and Plum Run, tributaries of the 
Scioto river, in abundance, Williamson and Osburn, 1897; Knox 
County, Parker’s Run, a tributary of Big Jelloway creek, ‘‘in 
considerable numbers,’’ Parker, Williamson and Osburn, 1898 ; 
Licking County, occurring in abundance in spring runs tributary 
to North Fork of Licking river near Newark, R. C. Osburn, 1899; 
Niggermill Run at Salem, E. B. Williamson, 1900. 
Genus: WHYBOGNATHUS. 
Hybognathus nuchalis Agassiz. SILVERY MINNOW. 
Head 4% to 5; depth 4%; eye 4; D. 8; A. 7; teeth 4-4; scales 5-38-4. 
Body elongate, comparatively slender. Head moderate, the profile evenly 
curved; upper jaw heavy, lower thin. Scales large and silvery, 12 to 14 in 
front of dorsal. Lateral line decurved. Intestines very long, 7 to Io times 
the length of body. Color olivaceous green above, translucent in life; sides 
clear silvery; fins plain. Length 4 to 7 inches. - 
This species seems to be confined to the southwestern part of 
the state. Jordan, in his Ohio Report, gives it as abundant in 
small streams flowing into the Ohio river, but Dr. Henshall 
records it for only White Oak creek and the Ohio river, and in 
my work at Ironton and Bellaire I failed to find it. This species 
is not mentioned by any other collector. 
