PLEISTOCENE FOSSILS. 247 



My only fossil specimen, obtained from Dr. Packard, is of the 

 small, elevated and depauperated variety so common at Murray Bay 

 and the north shore of the Gulf. It is curious that this common 

 modern species is so very rare in the Pleistocene. 



Lepeta caeca. M oiler. 



Fossil — Montreal ; Riviere-du-Loup ; Quebec ; Labrador ; European 

 Post-pliocene. (Plate VI., Fig. 9.) 



Recent — Gaspe ; Labrador ; Arctic seas generally ; and coast of 

 New England rarely. 



This shell is not at all rare, living at Gaspe, and fossil at Riviere- 

 du-Loup. Carpenter remarks that some of my Montreal specimens 

 have the characters of variety striata of MiddendoriEf from Siberia. 



Capulus Ungaricus. Lin. {commodns ? Middendorff. ) 



Fossil— Point Levi, near Quebec. One specimen only, found by 



Mr. Gunn and communicated by Dr. W. J. Anderson. Another and 



larger collected at Montreal (Prof. Kennedy) ; Scotland (Jeffreys). 



(Plate L, Fig. 14.) 



Recent— Spitzbergen ; Greenland ; Norway. I have not found this 



shell recent in the Gulf of St. Lawrence. 



This species is fossil at Uddevalla, and is supposed to be the same 



with C. fallax and G. obliquatus of Wood from the English Crag. If 



a form of Capulus Ungaricus, it has been repeatedly dredged alive oflF 



the New England coast, in deep water, by Verrill. 



Crepidula fornicata, L. 



Baron de Geer, in his visit to Canada, 1891, was so fortunate as to 

 find at the Mile-End Quarries, in the Saxicava sand, a small specimen 

 of this shell, the first hitherto found in Canadian Pleistocene. 



Margarita helicina. Fabricius. 



Fossil — Montreal ; Murray Bay. 



Young specimens resemble M. acuminata of Mighels. Broad speci- 

 mens resemble M. Campamdata, Morse. 



Recent— Arctic seas; Gulf of St. Lawrence; and coast of New 

 England. Also British Columbia. It is M. Arctica, Leach. 



Margarita argentata. Gould. 



Fossil— Montreal. Rare. 



Recent— Labrador and Gulf St. Lawrence (Whiteaves) ; Murray 

 Bay; Gaspe; Riviere-du-Loup ; Little Metis; coast of New England 

 and Nova Scotia ? Possibly the same with M. glauca, Moller, from 

 Greenland. 



