330 JONES — MOLLUSCA OF NOVA SCOTIA. 



H.striatella,Aiith. Neighbourhood of Halifax ; scarce. (Willis.) 

 H. hirsuta, Say. do. common. 



H. pulchella, Mull. do. not uncommon. 



H. hortensis, Mull. Whole country ; common. The yellow 

 variety is far more abundant than the striped. 



Succinea obliqua, Say. Stagnant waters ; Halifax, &c. 

 S. avara, Say. do. do. 



Fam. Auriculid^e. 

 Alexia myosotis, Pf. 



Fam. Limn^eid^e. 



Limncea columella, Say. In most lakes and ponds ; common. 

 L. elodes, Say. Truro marshes : common. 

 L. catascopium, Say. Dartmouth Lakes ; rare. (Willis.) 

 L. humilis, Say. Pond at Fort Needham, Halifax. 

 Physa heterostrophoj, Say. Truro marshes ; common. 

 P. ancillaria, Say. Dartmouth Lakes. (Willis.) 

 Bulinvus elongatus, Binney. Truro marshes ; not common. 

 Planorbis trivolvis, Say. Dartmouth Lakes ; common. 

 P. bicarinatiLS, Say. do. 



P. defiectus, Say. do. 



P. dilatatus, Gould. do. 



Ancylus parallelns, Hald. Fresh water lakes and streams ; 

 common. 



