376 THE CANADIAN NATURALIST. [Vol. vi. 



small and often of a short and rounded variety. This is espe- 

 cially the case inland, as at Montreal. At Riviere-du-Loup a 

 small thin variety with a strong epidermis and attenuated poste- 

 riorly, is found in situ in its burrows in the Leda clay. It may 

 be a deep-water variety. Some large specimens in collections 

 from this place, I have reason to believe are from Kitchen-mid- 

 dens and not fossils. 



Kennerlia glacial is, Leach. 



Fossil — Leda clay ; St. John, New Brunswick ; Saco, Maine. 



Recent — Gaspe (Whiteaves); Murray Bay; Labrador (Packard). 



This species, which was at first confounded with Pandora 

 trilineata by Dr. Packard, is evidently quite distinct, and on the 

 evidence of the hinge would belong to a different genus. Much 

 nearer to Pandora pinna, Mont. ; = P. obtusa Forbes and Han- 

 ley. J. F. W. 



Lyonsia (^Pandorirui) arenosa, Moller. 



Fossil — Leda clay; MontreaU(rare and small); Bivi^re-du- 

 Loup, common; Duck Cove, N. B. ; Saco, Maine; also in 

 Greenland (Moller). 



Recent — Murray Bay and Gaspe ; Halifax (Willis) ; Green- 

 land (Moller) ; Labrador (Packard). 



Some specimens from Portland are much larger than those 

 from Riviere-du-Loup and Montreal, and Mr. Whiteaves finds 

 individuals an inch long, living at Gaspe. 



Thracia Conradi, Couthuoy. 



Fossil — Saco (Packard). 



Not yet found fossil in Canada, but recent, though rare, in 

 Nova Scotia (Willis) ; and at Gaspe. Also, though apparently 

 rare, at Labrador (Packard). 



Has probably extended its northern limit to Canada, since the 

 glacial period, 



Macoma Grotalandica, Beck. 



Fossil — Saxicava sand and Leda clay ; Montreal ; Ottawa ; 

 Perth, Out. ; Pakenham Mills, Cornwall ; Clarenceville ; Upton ; 

 Quebec ; Murray Bay ; Riviere-du-Loup ; Labrador ; Lawlor's 

 lake, N.B. ; Campbcllton, P. E. L ; Westbeach, Maine; Green- 

 land (Moller). 



Recent — Everywhere on the coasts of the Gulf and River St. 

 Lawrence, as a common littoral shell. 



