UN 10. 



51 



c 

 E 



OBLONa. 



*Jewettii. Zees. 



*squalidus. 

 *Pawensis. Lea. 

 *hcbes. Lea. 

 *quadrilaterus. Lea. 

 *indefinitus. Lea. 

 *nopetonensis. Lea. Chenu. 

 *fraternus. Lea. 

 *Cuvierianus. Lea. 

 *Ckarlottensis. Lea. 

 *Savannahensis. Lea. 

 *Weldonensis. Lea. 

 *Gastonensis. Lea. 

 *humerosus. Lea. 

 *nubilus. Lea. 

 *Mecklenbergensis. Lea. 

 *Baldwinensis. Lea. 

 *Eoanokensis. Lea. Chenu. Han. 

 *macer. Lea. 

 *Neusensis. Lea. 



OBLONG. 



*Roswellensis. Lea. 



*Postellii. Lea. 

 *exolescens.' Gould. Elan. 

 Prusii. Bounj. 

 *Peguensis. Anth. 

 *jejunus. Lea. Chenu. Han. 



*complanatus. Solan. Lea. Gould. 



Adams. Han. Linsley. Dekay. 



Stimpson. Jfiyh. Gerst. 

 Mya complanata. Soland. Dill. 

 Mya riyida. Wood. 

 Mya purpurea. Eat. 

 Unio violaceus. Spenyler. 

 Unio purpureus.* Say. Bar. Con. 

 Unio rarisulcata. Lam. Jfenke. 

 Unio coarctata. Lam. Ifenke. 

 Unio purpurascem. Lam. Desh? 



Jfenke. Potier. 

 Unio rhomlula. Lain. 

 Unio carinifera. Lam. 

 Unio Georrjina. Lam. 

 Unio ylabrata Lam. 

 Unio sulcidens. Lam. Chenu. 

 Unio fluviatilis. Green. 

 Unio tortuosus. Sow. Reeve. 



*Northamptonensis. Lea. 

 *percoarctatus. Lea. 

 *squameus. Lea. 

 planilaterus. Con. 

 *inusitatus. Lea. 



1 I think this is the shell which Mr. Conrad figures in the Jl. Acacl. Xat. Sci.^ vol. -2. jil. iG, f. 6, but 

 which he considered as a U. complanalus. 



2 Mr. Conrad is wrong, in his "Synoptical Table," in giving Mr. Say's name precedence, making 

 complanalus a synonjTn. 



5 Deshayes, in Ency. Meth. Vers., t. 2, p. 381, No. 9. 



