13 



Mv minor, Lea. Tennessee drainage (small streams trib- 

 utary to Tennessee river.) 

 " rugosa, Barnes, Tennessee river. 

 " Spillmanii, Lea. Cahawba river. 

 " triangulata, Lea. Chattahoochee river. 

 Genus ANODONTA, Lamarck* 

 A. edentula, Say* Tennessee river. 

 " Gesnerii, Lea. Uphaupes creek. 

 " Hallenbeckii, Lea. Uphaupec creek. 

 " Showalterii, Lea. Coosa river ; Big Prairie creek. 

 " subvexa, Conrad. Black Warrior river. 



Family COKBICULAD.E. 



Genus CYBENA, Lamarck. 

 C. Carolinensis, Lamarck. Mobile bay. 



Genus SPH^RIUM, ScopolL 

 S. stramineum, Conrad. 

 S. fabale, Prime. Shoal creek. 

 S. occidentale, Prime. (Near Columbus, Ga.) 

 S. contractum, Prime. Grier's creek. 



Genus PISIDIUM, Pfeiffer. 



P, Yirginicum, Bourguignat. Chattahoochee river. 

 P. abditum, Haldeman* Springs and small streams. 



PECTINIBKANCHIATA. 



Family M:ELA.1VII>JE;. 



Sub-Family STREPOMATID^!. 



Genus STBEPOMA, Raf. 

 Sub Genus lo, Lea. 



v lo spinosa, Lea. Tennessee river, 

 lo turrita, Anthony. Bridgeport. Tennessee river. 



Sub Genus ANGITBEMA, Haldeman, 



A. angulata, Wetherby. Elk riven Compare Wheatteyi 

 Tryon, 



