64 



PERISTOMIANA 



2111 Valvata 

 2112 



2111a. " 



2112 a. " 



2124 b. Paludina 



2115 



211.5 b. " 



2118 a. " 



2113 b. " 



2122 b. " 



2115 c. 



2117 b. « 



2114 a. " 



2116 c. " 

 2124 " 

 2120 a. " 



2123 c. " 



2117 c. " 

 2121b. 

 2116b. " 



2124 a. " 



2118 " 

 2120 c. " 



2120 b. " 



2119 a. " 



2113 c. " 



2118 c. " 



2118 b. " 



2119 " 

 2119 b. " 



2121 " 



2114 c. " 

 2119 c. " 

 2114 b. " 

 2113 a. " 

 2117 " 



piscinalis, 



planoibis, 



spirorbis, 



-tricarinata, 



abbreviata, 



achatina, 



acuta, 



altalis, 



anatina, 



bicarinata, 



Boissieri, 



bulimoidea, 



costata, 



cylindiica, 



decisa, 



dissimilis, 



elongata, 



erosa, 



Ferrussiiia, 



gibba, 



grana, 



impiira, 



Integra, 



limosa, 



magnifica, 



margiiiata, 



miliaris, 



multicarinata, 



muriatica, 



naticoides, 



ponderosa, 



porata, 



pyramidalis, 



similis, 



subcarinata, 



unicolor, 



Fer., 



Drap., 

 II 



Say, 



Mich., 

 Lam., 

 Desh., 

 Ravenel, 

 Desh., 

 Desm., 

 Oharp., 

 Mich., 

 7 



Parrey., 



Say, 

 it 



Swains., 



Ziegl., 



Desm., 



Mich., 



Say, 



Lam., 



Say, 

 f( 



Conrad, 



Mich., 



Parrey., 



Caill., 



Lam., 



Fer., 



Say, 

 » 



Crist., 

 Mich., 

 Say, 

 Lara., 



France. 



Switzerland. 

 New- York. 



Jura. 



Rochclle. 



Montpeiier. 



Santee Canal. 



France. 

 (( 



Rome. 



Lyons. 



India. 



Hungary. 



Ohio. 



Moravia. 

 France. 



Ohio. 



France. 



Ohio. 

 II 



Georgia. 



France. 



Croatia. 



Syria. 



France. 



Germany. 



Ohio. 



Italy. 



Montpeiier. 

 Ohio. 

 Egypt. 



Sowb. Gen. of Shells, f. 1. 

 Drap. Moll. pi. 1, f. 34, 35. 

 " pi. 1, f. 33, 33. 

 Sowb. Gen. of Shells, f.2. 



Mich.Comp. i Drap. pl.lS.f 52,53. 

 Encycl. pi. 458, f. I, a, b. 

 Drap. Moll. pi. 1, f 23. 



Drap.Moll.pl. l,f.24,25. 

 Mich.Comp. a Drap. pi. 15,f.48,49. 



Mich.Comp. a Drap.pl.l6,f.54,55. 



Say's Am. Conch, pi. 10, f 1. 

 Swains. Zool. Illust. pi. 98. 



Mich.Comp. aDrap.pl.l5,f.56,57. 

 Drap. Moll. pi. 13, f. 4-6. 

 Journ. A. Nat. Sc. vol. 2, p. 378. 

 Drap. Moll. pi. 1, f. 19. 

 Journ. A. N. Sc. vol. 2, p. 174. 

 " " vol. 1, p. 125. 

 Conrad's F. W. Shells, pi. 8, f. 4. 

 Mich.Comp. a Drap pi. 15,f.58,59. 



Caill. Voy. aMiroc, pi. CO, f. 6. 

 Drap. Moll. pi. 1, f.24, 25. 



Say's Amer. Conch, pi. 30, {. 1. 

 Journ. A. N. S. vol. 2, p. 174. 

 Paludina achatina, Lam. 

 Mich. Comp. a Drap. p. 93, no. 1. 



Caill. Voy .^ M6roe, t. 2, pi, 60, f.7. 



