96 THE FISHES OF OHIO. 
Apparently a very rare species in Ohio, and confined to larger 
streams. Recorded by Henshall for the Muskingum river, 1889 ; 
and one specimen was taken on sandy bottom in the Ohio river at 
Ironton, May 31, 1899, by the writer. 
Genus: AMMOCRYPTA. 
Ammocrypta pellucida (Baird). SAND DARTER. 
Head 4 to 43; depth 7 to8%. D. X-10; A. I, § to 10; scales in lateral 
line about 75, about 6 rows above lateral line. Body very long, terete, quite 
pellucid in life. Head stout; eyes large, high up, interorbital space narrow. 
Cheeks, opercles, and temporal region with embedded scales; belly and sides 
below lateral line entirely naked; much of dorsum in front and on either 
side of dorsal fin naked or thinly scaled. Translucent, sometimes tinged 
with olivaceous; scales with narrow, dark edging; about 12 or 15 black 
blotches along the sides; a gilt lateral band. Length 3 inches. 
The Sand Darter is well distributed over the state and is 
common locally in larger streams on sandy bottoms. Taken also 
in the lake. Hamilton County, common in Little Miami river, 
Henshall, 1888 ; Lorain County, Lake Erie and the larger streams, 
not common, McCormick, 1892; ‘‘ common everywhere on sandy 
bottom in the Maumee river, and in the lower courses of the 
larger tributaries,’ Kirsch, 1893; Franklin County, Olentangy 
river, Big Walnut and Little Walnut, Big Darby and Black Lick 
creeks, not common, June 28 given as a breeding date, William- 
son and Osburn, 1897; Huron river at Milan, Wabash river at 
Celina, Stillwater creek near Dayton, R. C. Osburn, 1899 ; Grand 
river at Painesville, Ohio river at Bellaire, R. C. Osburn, 1900. 
