NORTH AMERICAN CONCHOLOGY. 



13T 



Name. 

 Unio Sayii Tappan. 



Schoolcraftensis Lea. 

 securis Lea. 

 Shepardianus Lea. 

 silliquoides Barnes. 

 simus Lea. 

 Sowerbianus Lea. 

 solidus Lea. 

 Sloatianus Lea. 

 spinosus Lea. 

 splendidus Lea. 

 sparsus Lea 

 stapes Lea. 

 Stonensis I^ea. 

 strigosus Lea. 

 striatus Lea. 

 stramineus Conrad. 

 subrotundus Lea. 

 subplanus ( 'onrad. 

 subangulatus Lea. 

 subovatus Lea. 

 subtentus Say. 

 sulcatus Lea. 

 trapezoides Lea. 

 Taitianus Lea. 

 Tappanianus Lea. 

 tetralasmus Say. 

 tenuissimus Lea. 

 tenerus Raf. 

 Tennesseensis Lea. 

 tener L^ea. 

 tortivus Lea. 

 tceniatus Conrad. 

 Troostensis Lea. 

 trigonus Lea. 

 triangularis Barnes. 

 trosculus Lea. 

 turgidus Lea. 

 tuberculatus Barnes. 

 undulatus Barnes. 

 varicosus Lea. 

 vanuxemensis Tjea. 

 Vaughanianus L^ea. 

 ventricosus Barnes. 

 verrucosus Barnes. 



Locality. 

 Wisconsin. 

 Fox river, Green bay. 

 Ohio. 

 Georgia. 

 Ohio. 



Cumberland river. 

 Tenn. & Alabama. 

 Ohio. 

 Georgia. 



Alabama & Georgia. 

 Altamaha river. 

 Tennessee. 

 Ohio & Alabama. 

 Tennessee. 

 Georgia. 

 Georgia. 

 Alabama. 

 Ohio. 

 Virginia. 

 Georgia. 

 Ohio river. 

 Southern rivers. 

 Western rivers. 

 Lake St. Joseph, La. 

 Tennessee. 

 Troy, N. Y. 

 Louisiana. 

 Western rivers. 

 Virginia. 

 Tennessee. 

 Tennessee. 

 Georgia. 

 Flint river, Ga. 

 Tennessee. 

 Ohio. 



Western rivers. 

 Lake Monroe, Fla. 

 Bayou Teche, La. 

 Western rivers. 

 Western rivers. 

 Ohio. 



Cumberland river. 

 South Carolina. 

 Lake Champlain. 

 Ohio. 



