UPPER TENNESSEE DRAINAGE. 565 
47. OBLIQUARIA REFLEXA Rafinesque (1820). 
Obliquaria reflera Rafinesque, ’20.—Unio cornutus Lewis, ’71.— 
Unio cornutus Pilsbry & Rhoads, ’96.—Obliquaria refleva Ort- 
mann, 7120, p. 310 (anatomy) —Obliquaria reflexa Simpson, ’14, 
P. 330. 
Only in the larger rivers. Tennessee below Knoxville (Lewis), 
and at Rathburn, Hamilton Co., Tenn. (Walker coll.). Lower 
Clinch, Patton’s Ferry, Roan Co., Tenn. (Pilsbry & Rhoads). I 
found it in the Clinch at Solway, Knox Co.; Edgemoor and Clinton, 
Anderson Co., Tenn. In the Walker coll. is a specimen from below 
Agee, Campbell Co., Tenn. 
Type locality: Kentucky River and Letart Falls (according to 
Vanatta, the types are from the latter place, below Parkersburg, 
Wide) 
Genus: CypROGENIA Agassiz (1852). 
Ortmann, 120,-p. 312. 
48. CYPROGENIA STEGARIA (Rafinesque), 1820. 
Obovaria stegaria Rafinesque, ’20.—Unio irroratus Lewis, ’71.— 
Unio trroratus Pilsbry & Rhoads, ’96.—Cyprogenia irrorata Ort- 
mann, ’12), p. 312 (anatomy).—Cyprogenia irrorata Simpson, 
"14, p. 320—Cyprogema stegaria Vanatta, 15, p. 554. 
Known from the Tennessee below Knoxville (Lewis), and the 
Holston, at Boyd Island, Knox Co. (Pilsbry and Rhoads). It is also 
in the Tennessee at Rathburn, Hamilton Co., Tenn. (Walker collec- 
tion). I traced it up, in the Holston, to Turley Mill, Grainger Co., 
Tenn. ; and in the lower Clinch it is quite abundant, going up to Oak- 
man, Grainger Co., Tenn. 
Type locality: Ohio River. 
Genus: Dromus Simpson (1900). 
Ortmann, ’120, p. 314. 
