^sopiis, Green, 



alatiis, Say, 



altilis, Conrad, 



ambignus, Lea, 



amnicus, Ziegler, 



angulatus, Lea, 



ang^ustatiis, " 

 Anodontoides, " 



apiculatus. Say, 



arcseforniis, Lea, 



arctior, '•' 



asper, " 



asperrinms, " 



atratiis. Swains., 



auratus, " 



badius, Kokeil, 



Batavns, Lam., 



brevidens. Lea, 



camelus, ••' 



Capigliola, Payr., 



capsasformis, Lea, 



cariosus. Say, 



castaneus, Lea, 



circuliis, " 



clavus. Lam., 



coenileus. Lea, 



coccineus, - 



compressns, " 



complaiiatus, " 



confertus, " 



Congarasns, " 



Conradicus, " 



Cooperianus, " 



cornntus, Barnes, 



corrugatus, Lam., 



crassidens, - 



crassns, Say, 

 CumberlandicusLea, 



Ohio. 



If 



Alabama. 



Sonth America. 



France. 



South America. 



South Carohna. 



Ohio. 



Louisiana. 



Tennessee. 



Ohio. 



Alabama. 



Ohio. 



Chill. 



New Holland. 



Rhone. 



Europe. 



Ohio. 



Corsica. 

 Tennessee. 

 New Jersey. 

 Alabama. 



Ohio. 



II 



Hindostan. 



Ohio. 



If 



New Jersey. 

 South Carolina. 



i; If 



Tennessee. 



Ohio. 



li 



East Indies. 

 Ohio. 



Tennessee. 



Swain's Exol. C. pi. 7. 



Conrad. Fresh W. Shells, p. 2, f.l. 



Sowb. Gen. pi. 1, f. 2. 

 Schroet. Fluss. tab. 3,f. 5. 

 Sowb. Gen. f. 2. 

 Trans. A. P. S. p. 17, f. 13, v. 4. 

 " pi. 8, f. 11, V, 4. 

 Say's Amer. Conch, pi. 52. 

 Tran. Am. P. S, pi. 17, f, 44, v. 4. 

 " V. 6, pi. 4, f. 10. 

 " " V. 4, pi. 9, f. 15. 

 " V. 4, pi. 5, f. 3. 

 Swains. Zool. 111. pi. 171. 

 Voy. Je laCoquiUe Mol. p.l5,f.55. 

 Mich. Suppl. pi. 16, f. 25. 

 Drap. pi. 11, f. 3. 

 Trans. Am. P. S. v. 4, pi. G, f. 6. 

 '< " " v.5,pl.l5, f.45. 

 Payr. Cat. pi. 2, f. 3, 4. 

 Trans. Am. P. S. v. 5, pi. 2, f. 4. 

 Encycl. Am. Conch, pi. 3, f. 2. 

 Trans. Am. P.S. v. 4, pi. 11, f. 21. 

 " " V. 3, pi. 9, f. 14. 



U. Modiolilbrmis, Say. 

 Trans.Am. P.S.v.4,p. 13,f.25. 



' V. 6, pi. 5, f. 12. 



" V. 3, pi. 12. f. 22. 

 Encycl. Am. Conch, pi. 3, f. 1. 

 Trans. Am. P. S. v. 5, pi- 16, f. 47. 

 " '■ " V. 4, pi. 6, f. 4. 

 " V. 5, pi. 9, f. 23. 

 " " " V. 5, pi. 8, f. 21. 

 Conrad, Monog. pi. 4, f. 1. 

 Wood. Gen. Conch, pi. 24, f. 1-3. 

 Conrad, Mon. pi. 26. 

 Wood's Ind. Sup. pi. 1, f.6. Mya. 

 Trans. Am. P. S. v. 6, pi. 7, f. 19. 



♦ Castalia ambigua, Lam. 



t Hyria corrngata. Lam., Sowb. 



