The Nautilus. 



Vol. VII. DECEMBER, 1893. No. 8 



LAND AND FRESH WATER SHELLS IN THE ROCKY MOUNTAINS. 



BY GEO. AV. TAYLOR, VICTORIA, B. C. 



In the October ISTautilus there is a sliort paper by my friend 

 Mr. Hanham upon the shells found by himself during a trij) in that 

 rather out of the way Canadian locality, the Gaspe region. 



It may be interesting to have a record of a small collection made 

 by me a few weeks ago in another little-known locality at the oppo- 

 site end of the Dominion viz. : Laggan near the summit of the Rocky 

 Mountains. 



I had received earlier in the year from Mr. T. R. Bean of Lag- 

 gan, a nice little collection of shells which included specimens of 

 what Dr. Sterki considers to be the true Papa hoppli of Moller, 

 and this tempted me to stay over for a couple of days Avhen passing 

 through Laggan last September on my way to Toronto. 



Dr. Bean most kindly showed me all the best localities known 

 to him, and our united exertions were rewarded by the discovery of 

 several species that he had not previously recognized, including one 

 which I believe had not before been found in Canada. 



In the rivers, the Bow and the Pipestone, we could not find any 

 shells at all, the waters'being cold and the stream rapid in each case, 

 but in all the little creeks and .-wamps Linncea palustris abounded 

 and Planor bis parvus occurred in less numbers. In a small lake 

 not more tlian a mile from Laggan Ave found, in addition to the 



