23 



53 C. staphylea. 



54 C. stolida. 



55 C. talpa. 



56 C. tesfeitudinaria. 



57 C. thersites. 



58 C. tigris. 



59 C. turdus. 



60 C. ventriculus 



61 C. vitellus. 



62 C. zigzag. 

 1 O. ovum. 



2 O. verrucosum. 



Linnaeus. 



3 O. volva. 



Gascoigne. 

 Linnaeus. 



Lamarck. 



Linngeus. 



. OVULUM. 



Linnaeus. 



a Philippines. 

 b Port Blair, An- 



damans. 

 Ceylon. 



a Eastern Seas. 

 b Port Blair, An- 



damans. 



Dr. Gamach. 



Dr. Walters. 



Capt.Edgcome. 



Mauritius. 



Australia. 



a Eastern Seas.* 



b Port Blair, An- Lieut. McGoun. 



damans. 



c Capt.Edgcome. 



Hab. ? 



Isle of Annan. 

 Port Blair, An- Dr. Walters. 



damans.* 

 Mozambique. 



Bruguiere, 1789. 

 a Port Blair, An- Dr. Walters.* 



damans. 



b Capt.Edgcome. 



c Dr. Gamach. 



Port Blair, An- Dr. Walters. 



damans. 

 West Indies. SirW.Denison. 



FAMILY 30. CANCELLARHDJE. H. and A. Adams. 



GENUS. CANCELLARIA. Lamarck, 1799. 



Straits of Malacca. 



Mauritius. 



Indian Archipelago. 



Ceylon. 



Hab.? 



SirW.Denison 



1 C. bifasciata. Deshayes. 



2 C. hystrix. Reeve. 



3 C. lamellosa. Hinds. 



4 C. Littorinseformis. Sowerby. 



5 C. mangelioides. Reeve. 



FAMILY 31. TRICHOTROPID^E. 



GENUS. TRICHOTROPIS. Sowerby and Broderip, 1826. 

 1 T. cancellata. Hinds. Vancouver's Isld. 



FAMILY. CERITHHD.E. 

 GBNUS, CERITHIUM. Bruguiere, 1789. 

 1 C. alveola, ? Tahiti. SirW.Denison. 



