n8 The Ottawa Naturalist. [September 



Succinea Hawkinsi, Baird. 



East bank of the Similkamee n River, J. M. Macoun ; four 

 rather small but living specimens. 



Succinea retusa, Lea. 



Sumas Prairie, W. Spreadborough ; several specimens. In 

 the Museum of the Geological Survey there are similar specimens 

 from Deer Park, B.C , at an altitude of 5,300 feet, collected by 

 Professor Macoun in 1890. 



(B.) From Douglas, B.C., collected by W. Spread- 

 borough in May, jqo6. 



Pelecypoda. 



Margaritana margaritifera (L). 



Campbell's Creek ; four perfect but rather small specimens. 



* Pisidium " abditum,'''' or near. 

 Several specimens. 



Gasteropoda. 



Planorbis ( Menetus ) opercularis, 

 var. Centervillensis. 



Several specimens. 



Polygyra Columbiana (Lea). 



Two living and adult specimens. 



Circinaria Vancouverensis (Lea). 



One fine adult and living specimen. 



(C.) From various localities arid collections. 

 Pelecypoda. 



Gonidea angu?afa (Lea). 

 Anodonta aiigulata, Lea. 1838. 



This species has been recorded from British Columbia by 

 Simpson and Dall, presumably because it is included in one of the 

 lists of shells collected in that province by J. K. Lord in i860. 

 But, Mr. Lord's specimens are expressly stated to be from the 

 Columbia River at Fort Colville, which, he says, is " not strictly 



