HELICIDJ3. 215 



Genus CAMPTONYX, Benson (type C. theobaldi, 

 Bens.). 



I do not find the genus in Cams and Gerst. ; probably 

 they follow Fischer in uniting the genus to Valenciennesia, 

 Bouss. (very doubtful in my opinion) ; it is rather an allied 

 form to the Bourbon Lanzia, Jouss. Woodward classed the 

 genus in the Otiniince). 



I. Camptonyx theobaldi, Benson, 



13 Girnar Hills, Kattywar; coll. W. Theobald, Esq. 



Genus CAMPTOCERAS, Benson (type C. terebra). 



From the recorded habits of this Mollusk, as also from 

 the characters of the shell itself, I feel convinced Camptoceras 

 will prove to be a sinistral form, closely allied to Succinea, 

 not connected at all with Physa, with which it has hitherto 

 been ranked. 



1. Camptoceras austeni, H. F. Bianford. 



8 Mymensing, Dacca ; coll. Major H. H. God win- Austen. 



2. Camptoceras lineatus, H. F. Bianford. 



2 Mymensing, Dacca; coll. Major H. H. Godwin-Austen. 



Genus AMPHIBULINA, Lam. (type A. patula). 

 Sub-Genus PELLICULA, Fisch. (type C. depressa, Morch). 



1. AmpMbulima (Pellicula) appendiculata, Pfr. 



1 Guadaloupe j ex c. Prof. W. "JSewcomb. 



Genus SIMPULOPSIS,ec&. (iypeS.sukulosa, Fer.). 



1. Simpulopsis rufovirehs, Moric. 



2 Babia (typical) j coll. Mr. Moricand, ex c. A. Morelet, Esq. 



2. Simpulopsis braziliana, Moric. 



2 Brazil; ex c. Prof. W. Newcomb. 



