MOLLUSCA. 



II. Class CEPHALOPHORA, Blamv. 

 I. Sub-Class GASTROPODA, Cuvier. 



1. Order PULMONATA, Cuvier. 

 1. Sub-order Geophila, Fer. (Stylommatophora, A. Schm.). 



Family HELICID^, Gray. 

 [Group AGNATHA, Morch.] 



1. Sub-family ONCHIDIID^, Gray. 



Genus ONCHIDIUM, Buchanan (type 0. typhce). 



1. Onchidium typhse, Buchanan. 



20 in alcohol. Calcutta; coll. GK Nevill, Esq., and Dr. F. Stoliczka. 



2. Onchidium pallidum, Stoliczka. 



3 in alcohol, (types) Port Canning; coll. G. Nevill, Esq., and Dr. 

 F. Stoliczka. 



3. Onchidium tigrinum, Stoliczka. 



12 in alcohol, (types) Port Canning ; coll. G. Nevill, Esq., and Dr. 

 F. Stoliczka. 



4. Onchidium tenerum, Stoliczka. 



10 in alcohol. Port Canning (type) ; coll. G. Nevill, Esq., and Dr. 

 F. Stoliczka. 



5. Onchidium veruculatum, Cuvier. 



1 Ceylon ; coll. Hugh Nevill, Esq. 



6. Onchidium, n. sp. (?). 



2 Andaman Islands; coll. J. Wood-Mason, Esq. 



A 



