147 



III. Land and Freshwater Shells of Canada. 



So much has been written on the land and freshwater shells of 

 Canada that it will be impossible for me to mention here all of the 

 many useful papers that have appeared. 



In the eastern provinces the writing of D'Urban, 47, 4S ' * '" Bell, 49 

 Whiteaves, a>etc - Provancher, :s Hanham, 7 ' J and others have almost 

 exhausted the subject. 



Of the rich fauna of the Ottawa district we have accounts from the 

 pens of Heron GO and Latchford,' n,etl " the last named I hope still hard at 

 work. 



Passing westward we find that Manitoba has been explored con- 

 chologically by Bell 57 , Dawson 59 and Christy 7l . 



The mollusca of Alberta have been studied by myself in collec- 

 tions most kindly made for me by Mr. A. O. Wheeler and Mr. T. E. 

 Bean, and which will be reported on in an early number of the Ottawa 

 Naturalist. Forty-four species are now known to me from that 

 province. 



There is a short paper on shells from the Rocky Mountains in the 

 Nautilus for December 1893. 80 



Finally for information as to the land and freshwater shells of our 

 most western province (B.C.) I must refer you to my own paper on the 

 land shells in the Ottawa Naturalist 3 (December, 1889), to a revised 

 list of the same in the Nautilus December, 1891, 7G and to a list of .fresh- 

 water species which is contained in my paper above referred to on the 

 marine shells of B.C. 



A preliminary check list of the land and freshwater shells of the 

 whole Dominion, containing 244 names, was published in the Ottawa 

 Naturalist for June i892.' ; " 



This list may be brought fairly well up to date by omitting (as 

 erroneous records or as synonyms) Sph. patella, Sph. lenticulum, Pisid. 

 occidentale and 3 unnamed Pisidia, Anod.angulata and ovata, Pomatiopsis 

 lustrica, Limncea emaginata, Fhysa triticea, Planorbis mafrosiomus and 

 Billingsii, and Somatogyrus isogonus, and by adding the following : 

 Sph. fabale Prime and Raymondi ]. G. Cooper, Pi's, aequilaterale Prime, 

 Unio parvus Barnes, Novi-eboraci Lea and cir cuius Lea, Bythinella 



