176 The Ottawa Naturalist. 



November 1887, p. 68. The species was not again noticed, I think, until 

 Mr. Homer Squyer quite lately found a single specimen in river drift 

 near Mingusville, Montana as recorded by him in the " Nautilus " for 

 October 1894 (Vol. viii. p. 95.) 



The second addition to our list from this collection is a small 

 Limncea which is probably the Limticea bulimoides of Lea. Though 

 allied to, and in this instance collected with, Limncea palustris it seems 

 quite distinct from all forms, that I have seen, of that very variable 

 species. The largest of the 28 specimens collected is only 8x5 mm. 

 but is quite mature and has a thickened red-edged outer lip and also a 

 second red line, marking a former stage of growth, about \\ mm. within 

 the aperture. 



The third addition is Sphcerium Jayanum and the shells I refer to 

 this species are from Crow Lodge Creek, Mosquito Creek and Little 

 Bow River. 



The other shells contained in this collection are Conulus fulvus 

 Patula striatella, Succinea avara, Pisidium abditum, Limncea palus/ris, 

 L. staqnalis, L. caperata, L. desidiosa, Planorbis trivolvis, P. parvus; 

 Physa heterostropha and Bulimus hypnorum, all common and widely 

 distributed species. 



It will be seen that Mr. Wheeler's collections have added twenty 

 two species to the twenty one already known from Laggan and if we 

 add also Dr. Dawson's Patula strigosa we shall have 44 as the grand 

 total of the land and freshwater Mollusca of Alberta as at present 

 known. 



No doubt this list will some day be considerably extended and an 

 examination of the list of Montana shells lately published in the 

 " Nautilus " by Mr. Squyer and the other Manitoba and Assiniboia lists 

 of Dr. Dawson, Dr. Bell, and Mr. R. Miller Christy, will give us a good 

 idea of the species that may be expected to occur also in Alberta. 



In the list that follows the three collections of Mr. Wheeler, the 

 Laggan shells of Mr. Bean and myself, and a small collection 

 received a few days ago from Mr.T.N. Willing of Olds, Alberta, through 

 the kindness of Mr. James Fletcher, are tabulated, Patula strtgosa, as 



