24 



A. sub-globosa, Say. Tennessee river. 



A. tseniata, Con. "Alabama river ;" Coosa river. 



A. tintinnabulum, Lea. Tennessee river. 



A. virgata, Lea. Tennessee river. ( trilineata, Say, 

 var.) 



A. vittata, Lea. Cahawba river. [This has been else- 

 where erroneously credited to the Coosa river.] 



A. zebra, Anth. "Alabama." Coosa and Cahawba rivers. 



Family 



Genus VIVIPARA. 

 Sub-genus YIVIPARA. 

 Y. contectoides, W. G. Binney. Tuscumbia. 



Sub-genus TULOTOMA, Haldeman. 

 T. angulata, Lea. Coosa river. 

 T. bimonilifera, Lea. Alabama and Coosa rivers. 

 T. Coosaensis, Lea. Coosa river. 



Sub-genus MELANTHO, Bowditcli. 



M. ponderosus, !Say. Tennessee river. "All parts of 

 the State." (AldrioL) 



M. ponderosus, Say. var. Nolani, Tryon. Coosa, Ca- 

 hawba and Alabama rivers. 



M. ponderosus, Say. (geniculate var.) Talladega 

 creek. 



M. ponderosus, Say. var. coarctatus, Lea. Coosa 

 river. 



M. ponderosus, Say. var. incrassatus, Lea. Coosa 

 river. 



M. decisus, Say. (geniculate var.) Talladega Creek. 



M. decisus, Say. (coarctate var.) Big Prairie creek. 



M. De Campi. W. G. Binney. Stevenson. 



M. rufus, Naldeman. (geniculati var.) Talladega creek. 



M. lima, ^Anthony. Huntsville. 



Sub-genus LIOPLAX. Troschel. 



L. subcarinata, Say. Chattahoochee river; Coosa 

 river ? 



