UXIO. 



51 



OBLONG. 



*Jewettii. Lea. 



*squalidus. Lea. 

 *Pawensis. Lea. 

 *kebes. Lea. 

 *quadrilaterus. Lea. 

 *indefinitus. Lea. 

 *Hopetonensis. Lea. Chenu. 

 *£raternus. Lea. 

 *Cuvierianus. Lea. 

 *Ckarlottensis. Lea. 

 *Savannakensis. Lea. 

 *Weldonensis. Lea. 

 *Gastonensis. Lea. 

 *humerosus. Lea. 

 *nubilus. Lea. 

 *Mecklenbergensis. Lea. 

 *Bald\vinensis. Lea. 

 *Koanokensis. Lea. Chenu. Han. 

 *macer. Lea. 

 *Neusensis. Lea. 



f OBLOXG. 



^Koswellensis. Lea. 

 *Postellii. Lea. 

 *exolescens.' Gould. Blan. 



Prusii. Bounj. 

 *Peguensis. Anth. 

 *jejunus. Lea. Chenu. Han. 



*coniplanatus. Solan. Lea. Gould. 



Adams. Han. Linsley. Dekay. 



Stimpson. Migh. Gerst. 

 Mya complanata. Soland. Dill. 

 My a rigida. Wood. 

 Mya purpurea. Eat. 

 Unio violaceus. Spengler. 

 JJnio purpureus? Say. Bar. Con. 

 Unio rarisulcata. Lam. Menke. 

 JJnio coarctata. Lam. Menke. 

 Unio purpurascens. Lam. Desh? 



Menke. Potier. 

 Unio rhombula. Lam. 

 Unio carinifera. Lam. 

 Unio Georgina. Lam. 

 Unio glabrata Lam. 

 Unio sulcidens. Lam. Chenu. 

 Unio fluviatilis. Green. 

 Unio tortuosus. Sow. Reeve. 



*Xortliamptonensis. Lea. 



*percoarctatus. Lea. 



*squameus. Lea. 



planilaterus. Con. 



*inusitatus. Lea. 



1 1 think this is the shell which Mr. Conrad figures 

 which he considered as a U. complanatus. 



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

 complanatus a synonym. 



3 Deshayes, in Ency. 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 



