NORTH AMERICAN CONCHOLOGY. 



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Name. 

 Unio plicatus Say. 



U, rariplicata Lam. 

 undatus Barnes. 



U. obliqua Lam. ? 

 cornutus Barnes. 

 verrucosus Barnes. 

 nodosus Barnes. 

 tuberculatus Barnes. 

 rugosus Barnes. 

 ellipticus Barnes. 



U. crassus Say. 



Mya complanata Dillw. 

 carinatus Barnes. 

 alatus Say. 

 praelongus Barnes. 



U. purpurata Lam. ? 

 gibbosus Barnes. 

 cuneatus Barnes. 

 purpureus Say. 



U. purpurescens Lam. 

 rarisulcata Lam. ? 

 coarctata Lam. ? 

 rhombula Lam. ? 

 carinifera Lam. ? 

 Georgina Lam. 1 

 radiatus Dillw. 



U. ochraceus Say. 

 radiata Lam. 

 mucronatua Barnes. 

 inflatus Barnes. 

 ventricosua Barnes, 

 siliquoideuB Barnes. 

 ovatus Say. 

 cariosus Say. 

 planus Barnes. 

 triangularis Barnes. 

 nasutus Say. 

 gracilis Barnes. 



U. alatus Say. 

 parvus Barnes. 

 Alasmodonta arcuata Barnes. 

 rugosa Barnes. 

 complanata Barnes. 

 marginata Say. (no des.) 

 undulata Say. (no des.) 



Locality. 

 Ohio, MississippijWisconsin. 



Wisconsin and Fox rivers. 



Fox river. 



Wisconsin riv. ; Lake Erie. 



Wisconsin. 



Wisconsin. 



Ohio. 



Fox river. 



Fox river. 



Wisconsin. 



Wisconsin. 



Wisconsin. 

 Ohio river. 

 East of Alleghany mts. 



North America. 



Wisconsin river. 

 Wisconsin riv. & Lake Erie. 

 Wisconsin and Miss, rivers. 

 Wisconsin river. 

 Ohio and Maumee rivers. 

 North America. 

 Wisconsin river. 

 Detroit river. 

 Delaware river. 

 Wisconsin riv. & the lakes. 



Fox river. 



West Canada Creek. 



Fox river. 



Fox river, Wisconsin. 



