PLEISTOCENE FOSSILS 245 



Cylichna occulta. Mighels and Adams. 



Fossil Montreal ; Murray Bay ; Maine. 

 Recent Greenland to New England. 



Cylichna striata. Brown. 



Fossil Riviere-du-Loup and Clyde beds. 



Recent Arctic seas. Jeffreys thinks this the same with the pre- 

 ceding species. 



Haminea solitaries Say. 



Fossil Montreal ; rather common. 



Recent New England and northward. 



If this species is rightly determined, it furnishes a curious instance 

 of a somewhat southern species occurring in the drift of Montreal. 

 The Haminece, however, can scarcely be identified by weathered or 

 fossil specimens, so that this may possibly be a northern form distinct 

 from solitaria. 



Diaphana debilis. Gould. 



Fossil Montreal. 



Recent Gulf St. Lawrence (Whiteaves) ; Greenland to New 

 England. 



Jeffreys considers it the same with B. hyalina, Turton. If so, it 

 is a shell of the Clyde beds and of the Arctic seas generally. 



Utriculus pertenuis. Mighels. 



Fossil Montreal. 



Recent Labrador (Whiteaves) ; Gulf St. Lawrence, and south to 

 Cape Cod. According to Jeffreys it is U. turritus, Moller, Greenland. 



Patula striatella. Anthony. 



Fossil Pakenham, Saxicava sand. 



Lymnea umbrosa. Say. 

 Fossil Montreal. 



Lymnea caperata. Say. 

 Fossil Montreal. 



Limncea palustris. Muller. (=L. elodes, Say.) 

 Fossil Pakenham Mills, Saxicava sand. 



