282 



Voy. Astrol., pi. 57, f. 1-4. 



Reeve C. Syst., pi. 198, f. 3. 

 Gmel., p. 3625, No. 41. 

 Ency. Meth., pi. 460, f. 3, a, b. 

 Chemn. 9, pi. 1 12, f. 952, 953. 

 Zool. Illust., 3, pi. 120. 

 Sowb. Gen., f. 1. 

 Zool. 111., 3, pi. 136. 

 Spix T. Bras., pi. 5, f. 1-4. 



Spix T. Bras., pi. 4, f. 5. 

 Mem. Genev., 7, pi. 2, f. 26, 27. 

 Long. Exp. App., pi. 14, f. 2. 

 Trs. Am. Ph. S., 5, pi. 19, f. 84. 



Zool. Jour., 3, pi. 27, f. 7, 8. 

 Chemn. 7, pi. 129, f. 1144, '5. 

 Zool. 111., 2, pi. 103. 

 Chemn. 9, pi. 128, f. 1133-39. 

 Geves. C. C., pi. 3, f. 20, a, b. 

 Voy. Amer. Mer., p. 371. 

 Guer. Icon., pi. 13, f. 5. 

 Swains. Z. 111., 3, pi. 157. 

 Mull. Verm., p. 173. 

 Gmel., p. 3621. 

 Gmel., p. 3638. 



Fer. Syst. Conch., p. 68, No. 2. 

 List. C., pi. 129, f. 29. 

 Swains. Z. 111., pi. 119. 

 Chemn. 9, pi. 108, f. 914, 915. 



List. C., pi. 128, f. 28. 

 Spix T. Bras., pi. 3, f. 42. 

 Trs. Am. Ph. S., 5, pi. 19, f. 84. 

 Voy. Am. Merid., pi. 51, f. 1, 2. 

 Guer. Mag., 1835, p. 35. 



Ency. Meth., pi. 457, f. 4. 



Swains. Z. 111., 2, pi. 103. 

 Swains. Z. Ill, 3, pi. 157. 



fossil. 



Helix cornu-arietis, Linn. 

 Planorbis cornu-arietis, Lam. 

 Ceratoides fasciata, Guild. 

 Ceratoides cornu-arietis, D'Orb. 

 Ampullaria spherica, Desh. 

 Ampullaria rugosa, Sowb. 

 Ampullaria Olivieri, Desh. 



Ampullaria Hopetonensis, Lea. 

 Ampullaria paludosa, Say. 



is Ampullaria glauca, Gmel. 

 is Ampullaria lineata, Wagn. 

 Helix ampullacea, Linn. 

 Helix effusa, Chemn. 

 is Ampullaria canaliculata. 

 Ampullaria effusa, Lam. 

 Helix glauca, Linn. 

 Nerita effusa, Mull. 

 Helix oculus communis, Gmel. 

 Helix neritina, Gmel. 

 Bulimus effusus, Brug. 

 Ampullatia Guyanensis, Guer. 



is Ampullaria Lusitanica, Linn, 

 is Ampullaria glaucus, Linn. 



Ampullaria olivacea, Spix. 

 is Ampullaria depressa, Say. 



Ampullaria fasciata, Swnins. 

 Ampullaria castanea, Desh. 



Chemn. 9, pi. 108, f. 914, 915. Helix Lusitanica, Linn. 



