MOLLUSCA. 
II. Orp—ER PROSOBRANCHIA. 
2, Sus-Orprer CTENOBRANCHIA, Schweigger. 
[ Pectinobranchia, Cuvier]. 
1. Group TAENIOGLOSSA, Gray. 
Section AA—HOLOSTOMA, Blainville. 
1. Family AMPULLARIIDA, Guilding. 
Genus AMPULLARIA, Lamarck. 
Prod. 1799 and Syst. anim. sans vert. 1801, type Helix ampullacea, 
1. Ampullaria globosa. 
Ampullaria globosa, Swainson, Zool. Ill. 1822, “ Indian Rivers” ; 
Ampullaria orbata, Mérch, [as “of Perry 1811”]; from Bangkok, fide 
Morelet ; fide Martens, Mal, Bl. 1857: alt. 74, diam. 78 mil. 
3 Jamélpur and Gopélpur; coll. Dr. F. Stoliczka, 
50 Caleutta, Pt, Canning, Rdniganj and Dacca; coll. Dr. F. Stoliczka, 
J. Willson and G. Nevill, Esqrs. 
4 Allahabad; coll. Major L. W. Wilmer and J. Cockburn, Esq. 
7 Sambalpur, Central Provinces ; coll. Colonel M. M. Bowie. 
5 Manbhum; coll. V. Ball, Esq. 
11 Dum-Dum; coll. Major L. W. Wilmer. 
1 Kusidra River, above Panchuganj, Sylhet; coll. J. Wood-Mason, 
Esq. 
This last specimen is very interesting, as it was found im- 
mediately associated with A. maura! Calcutta “pecimens usually 
