Order PROSSOBRANCHIATA. 81 



Fain. Littorinidae . (continued) 



Littorina suluit'.i. Solomon Islands. 



obtusata. Atlantic. 



Litiopa bjmbyx. Mediterranean. 

 Lithoglyphus uaticoide>. Europe. 

 Lacuna pallidula. North America. 

 Rissoa venti-ieosa. Mediterranean. 

 Solarium perspectivum. ,, 



Fam. Paludinidae , 



Paludina bengalensis, India. 



,, mclano&toiua. Nagpn-r, India, 



,, fasciata. Italy. 



,, vivipara. Britain, 



,, listeri. ,, 



Iiithynia tentaculata. ,, 



pentaculata. India. 



,, leach i. Britain. 

 Ampularia polita. Calcutta, India, 



,, globosa. Nagpur, India. 



Amphibola australi^. Ne\v Zealand. 

 Pom us (Ampularia) urceus. Ramleh, Egypt. 

 Asolene saxer. Bombay, India. 

 Pomella megastoma. S. America. 

 Valvata piscinalis, Britain. 



Fam. Neritidae . 



Xerita undulata. Solomon Islands. 

 ,, ustulata. Philippines. 



