UNIO. 



51 



r OBLOXG. 



*Jewettii. Lea. 



*squalidus. Lea. 



*Pawensis. Lea. 



*]iebes. Lea. 



*quadrilaterus. Lea. 



*indefinitus. Lea. 



*Hopetoneiisis. Lea. Chenu. 



*fraternus. Lea. 



*Cuvierianus. Lea. 



*C]iarlottensis. Lea. 



*Savannaliensis. Lea. 



*Weldoiiensis. Lea. 



*Gastonensis. Lea. 



*]iumerosus. Lea. 



*niibikis. Lea. 



*MeckIenbergensis. Lea. 



*Baldwiiiensis. Lea. 



*Roanokensis. Lea. Chenu. Han. 



*macer. Lea. 



^Neusensis. Lea. 



( OBLOXG. 



*Eoswellensis. Lea. 



^Postellii. Lea. 



*exolescens.' Gould. Blan. 



Prusii. Bourg. 



*Peguensis. Anth. 



*jejunus. Lea. Chenu. Han. 



^complanatus. Solan. Lea. Gould. 

 Adams. Han. Linsley. Dehay. 

 Stimpson. Migh. Gerst. 

 My a complanata. Soland, Dill. 

 Mya rigida. Wood. 

 My a purpurea. Eat. 

 Unio violaceus. Spengler. 

 Unio purpureus? Say. Bar. Con. 

 Unio rarisulcata. Lam. Menke. 

 Unio coarctata. Lam. Menhe. 

 Unio purpitrascens. Lam. Desk? 



Menke. Potier. 

 Unio rhomhula. Lam. 

 Unio carinifera. Lam. 

 Unio Georgina. Lam,. 

 Unio glabrata Lam. 

 Unio sulcidens. Lam. Chenu. 

 Unio fluviatilis. Green. 

 Unio tortuosus. Sow. Reeve. 



*Nortliamptoiiensis. Lea. 



*percoarctatus. Lea. 



*squameus. Lea. 



planilaterus. Con. 



*inusitatiis. Lea. 



' I think this is the shell which Mr. Conrad figures 

 which he considered as a U. comijlanatus. 



^ Mr. Conrad is wrong, in his " Synoptical Table," 

 complanatus a sjmonym. 



' Deshayes, in Encij. Meth. Vers., t. 2, p. 381, No. 9. 



in the Jl. Acad. Nat. Sci., vol. 2, pi. 26, f. 6, but 

 in giving Mr. Say's name precedence, making 



