AMPULLARIID^. 13 



Sub-Genus SA ULEA, Gray. 



Proc, Zool. Soc. 1867, type Helix vitrea. Born. 



40, AmpuUaria (Saulea) vitrea. 

 Helix vitrea. Born, Index Mus. vindoh. 1778. 



4 Liberia; ex c. Dr. H. Dohrn. 



Genus MARISA, Qray. 



Phil. Mag., vol. 63, 1824, p. 274; = Ceratodes, Q-iUldmg, Zool. Journ. Ill, 

 1828. 



1. Marisa cornu-arietis. 



Helix cornu-arietis, Linnmus, Syst. Nat, X 1738; Conch. — Cai. II, 

 pi. XVIII, pj. 1, R. Parana. 



1 Loc. ? ; ex c. Dr. F. Stoliczlia (labelled " Senegal "). 



2. Marisa chiquitensis. 



AmpuUaria cbiquitensis, d'Orbigny, Voy. Amer. Merid. 1839, Chiquitos in 

 Bolivia, pi. 48, figs. 10-11. 



1 Bolivia ; ex c. Prof. E. C. Stearns. 



var. (? M. rotula, Mous.) 

 1 N. Grenada ; ex c. G. Nevill, Esq. 



The last wliorl does not increase in breadtli near the peris- 

 tome, as in the typical form. 



Genus LANISTES, Montfort. 



Conch. Syst. 1810, p. 122, type Helix lolteniana, Chemnitz, not of Humpfrey, 

 Mus. Calonnianum, 1797, type Mytilus discors, Lin. [insufficiently de- 

 scribed^; sect . = Meladoinus, Swainson, Treat. Malac. 1840, p. 340, type 

 Paludina olivacea, Sotv. 



1. Lanistes boltenianus. 



Helix Bolteniana, Chemnitz, Conch.— Cah. I, Vol. IX, 1786, p. 89 ; = Cyclo- 

 stoma carinatiim, Olivier, Voy. 1804 ;= Lanistes olivieri, Mff. 1810; 

 Conch— Cab. II, pi. 6, fig. 4. 



3 Locality ? ; ex c. As. Soc. BengaL 



