AMPULLARIIDS. 13 
Sub-Genus SAULEA, Gray. 
Proc. Zool. Soc. 1867, type Helix vitrea, Born. 
40. Ampullaria (Saulea) vitrea. 
Helix vitrea, Born, Index Mus. vindob, 1778. 
4 Liberia; ex-c. Dr. H. Dohrn. 
Genus MARISA, Gray. 
Phil. Mag., vol. 63, 1824, p. 274 ; = Ceratodes, Guilding, Zool. Journ, ITT, 
1828. 
1. Marisa cornu-arietis. 
Helix cornu-arietis, Zinneus, Syst. Nat. X 1758; Conch—Cab. IT, 
pl, XVII, fig.1, R. Parana. 
1 Loc.? ; exc. Dr. F. Stoliczka (labelled “Senegal ”). 
2. Marisa chiquitensis. 
Ampullaria chiquitensis, @ Orbigny, Voy. Amér. Mérid. 1839, Chiquitos in 
Bolivia, pl. 48, figs. 10-11. 
1 Bolivia; exc. Prof. E. C. Stearns. 
var. (? Wf. rotula, Mous.) 
1 -N. Grenada; exc. G. Nevill, Esq. 
The last whorl does not increase in breadth near the peris- 
tome, as in the typical form. 
Genus LANISTES, Montfort. 
Conch, Syst. 1810, p. 122, type Helix bolteniana, Chemnitz, not of Humpfrey, 
Mus. Calonnianum, 1797, type Mytilus discors, Lin. [insufficiently de- 
“scribed; sect.— Meladomus, Swainson, Treat. Malac. 1840, p. 340, type 
Paludina olivacea, Sow. 
1. Lanistes boltenianus. 
Helix Bolteniana, Chemnitz, Conch.—Cab. I, Vol. IX, 1786, p. 89 ; = Cyclo- 
stoma carinatum, Olivier, Voy. I804 ; = Lanistes olivierit, Méf. 1810; 
Conch—Cab. IT, pl. 6, fig. 4. 
3 Locality ?; exc, As. Soc. Bengal. 
