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Celebensis, Quoy, 
wv var., 
compressa, 
Columbensis, 
cornu-arietis, Linn., 
“ var., 
e “ 
ee ‘s 
corrugata, Swains., 
ss var., 
crassa, Swains., 
vg var., 
Cumingii, Sowb., 
Cyclostoma, Spix, 
decussata, Moric., 
depressa, Say, 
“4 var., 
“ ie 
dubia, Guild., 
effusa, Lam, 
fasciata, Swains., 
fasciata, Lam., 
Gevesensis, Desh., 
gigas, Spix, 
glauca, Linn., 
oe var., 
& “ 
globosa, -Swains., 
Guinaica, Lam., 
Guyanensis, Guer., 
Guyanensis, Lam., 
‘ var., 
Hopetonensis, Lea, 
insularum, D’Orb., 
UJ var., 
a“ Ke 
intorta, Lam., 
Kordofana, Parr., 
lineata, Wagn., 
luteostoma, 
Parr., 
Linn., 
lucida, 
Lusitanica, 
Swains., 
18 
381 
10 
24 
13 
6 
282 
Is]. Celebes, 
South America, 
Manilla, 
India, 
Pondicherry, 
Brazil, 
Bahia, 
Panama, 
Brazil, 
Brazil, 
East Florida, 
Georgia, 
West Indies, 
West Indies, 
Bahia, 
West Indies, 
South America, 
Amazon River, 
West Indies, 
East Indies, 
Guinea, 
West Indies, 
Guyana, 
Georgia, 
Argentine Republic, 
Amazon River, 
Purus River, 
Africa, 
Africa, 
Bahia, 
East Indies, 
Africa, 
Guinea, 
Voy. Astrol., pl. 57, f. 1-4. 
fossil. 
Reeve C. Syst., pl. 198, f. 3. 
Gmel., p. 8625, No. 41. 
Ency. Meth., pl. 460, f. 3, a, b. Ceratoides fasciata, Guild. 
Chemn. 9, pl. 112, f. 952, 953. Ceratoides cornu-arietis, D’Orb. 
Zool. Illust., 3. pl. 120. 
Sowb. Gen., f. 1. 
Zool. Ill., 3, pl. 136. 
Spix T. Bras., pl. 5, f. 1-4. 
Helix cornu-arietis, Linn. 
Planorbis cornu-arietis, Lam. 
Ampullaria spheriea, Desh. 
Ampullaria rugosa, Sowb. 
Ampullaria Olivieri, Desh. 
Spix T. Bras., pl. 4, f. 5. 
Mem. Geneyv., 7, pl. 2, f. 26, 27. 
Long. Exp. App., pl. 14, f. 2. 
Trs. Am, Pht s.) 5; pl. 19, f. 84. Ampullaria Hopetonensis, Lea. 
Ampullaria paludosa, Say. 
Zool. Jour., 3, pl. 27, f. 7, 8. 
Chemn. 7, pl. 129, f. 1144, °5. is Ampullaria glauca, Gmel. 
Zool. Ill., 2, pl. 103. 
Chemn. 9, pl. 128, f. 1133-39. Helix ampullacea, Linn. 
Geves. C. C., pl. 3, f. 20, a, b. 
Voy. Amer. Mer., p. 371. 
Guer. Icon., pl. 13, f. 5. 
Swains. Z. Ill., 3, pl. 157. 
Mill. Verm., p. 178. 
is Ampullaria lineata, Wagn. 
Helix effusa, Chemn. 
is Ampullaria canaliculata. 
Ampoullaria effusa, Lam. 
Helix glauca, Linn. 
Nerita effusa, Mill. 
Gmel., p. 3621. 
Gmel., p. 3638. 
Fer. Syst. Conch., p. 68, No. 2. 
List. C., pl. 129, f. 29. 
Swains. Z. Ill., pl. 119. 
Helix oculus communis, Gmel. 
Helix neritina, Gmel. 
Bulimus effusus, Brug. 
Ampullaria Guyanensis, Guer. 
Chemn. 9, pl. 108, f. 914, 915. is Ampullaria Lusitanica, Linn. 
is Ampullaria glaucus, Linn. 
List. C., pl. 128, f. 28. 
Spix T. Bras.. pl. 3, f. 42. Ampullaria olivacea, Spix. 
Trs. Am. Ph.S., 5, pl. 19, f. 84. is Ampullaria depressa, Say. 
Voy. Am. Merid., pl. 51, f. 1, 2. 
Guer. Mag., 1835, p. 35. 
Ency. Meth., pl. 457, f. 4. 
Swains. Z. Ill., 2, pl. 103. 
Swains. Z. Ill., 3, pl. 157. 
Ampullaria fasciata, Swains. 
Ampullaria castanea, Desh. 
Chemn. 9, pl. 108, f. 914, 915. Helix Lusitaniea, Linn. 
