g2 The Ottawa Naturalist. [J^'y 



Lunncea catascopimn. Say. Small, thick-shelled variety ; 

 several. 



From the Ontario side of Lake Abitibi. 

 Anodonta grandis^ var. Fooiiana, Lea. A full sized left valve. 

 Lampsilis liiteola (Lamarck). One perfect and adult specimen 

 Sphcerium slriatinum. (Lamarck). Four specimens. 



From Chilliwack Lake, B.C. 

 Anodonta Niittalliana^ Lea. Several perfect and " living- " 

 specimens. 



From Sumas Lake, B.C. 



Anodonta Oregonensis, Lea. Several. 



Anodonta Wahlamatensis, Lea. Several 



Planorhis trivolvis, Say. Several. 



LivuKza palustris, Muller. Several. 



Physa, species uncertain. Several, but mostly immature. 



B. Land shells. 



From the valley of the Chilliwack River. 



Epiphragmophoni fidelis (Gray). Four adult living specimens. 



Polygyra [Ariouta) Townsendiana (Lea). Typical form ; one 

 specimen. 



Polygyra [Stenotrema) gennana (Gould). One specimen. 



Circinaria sportella (Gould). Four specimens. 



Most of the species of Union-ida; in the foregoing- lists were 

 kindly determined by Mr. C. T. Simpson, of the U. S. National 

 Museum, who has charge of the types of Unionidfe described by 

 the late Dr. Isaac Lea, and now preserved in that institution. 



In regard to two of the species of Anodonta enumerated in. 

 these lists, the following remarks may be made. 



Anodonta Kennicotti, Lea. In Mr. Simpson's " Synopsis of 

 the Naiades", published by the Smithsonian Institute in 1901, A. 

 Simpsonianay Lea, and A. Dallasiana, Lea, are included among 

 the synonyms of A. Kennicotti. The types of A. Kennicotti are 

 from Great Slave Lake, at Fort Erie, and the north end of 

 Lake Winnipeg ; the type of A. Si^npsoniana is from Fort Rae, 

 Great Slave Lake, and that of A. Dellasiana' horn. Lake Winnipeg, 

 at the mouth of the Saskatchewan. The types of all three were 



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