Fossils from Anticosti. 4*7 



Mya truncata, L., var. uddevalensis. The short Arctic 

 variety, and one of them of unusually large size. 



Macoma calcarea, Chem. Large specimens. 



Macorna grcenlandica, L. One small valve. 



Saxicava rugosa, L. Well developed specimens and appar- 

 ently common. 



Astarte banksii, Leach. One valve. 



Balanus crenatus, L. 



Rhynchonella psittacea, L. 



Col. Gran* has also noted as occurring in the beds the 

 following species, of which there are no specimens in the 

 collection: — 



Pecten islandicus. 

 Mytilus edulis. 

 Natica grcenlandica. 

 Balanus harneri. 



In sand and clay filling the interior of a Mya, which seems 

 to have been entombed in situ, are many microscopic tests 

 of Foraminifera and valves of Cythere and Cytheridea. 

 Among the former were the following species : — 



Polystomella crispa. 



Nonionina scapha, (and var. labradorica.) 



Polymorphina lactea. 



Truncatulina lobata. 



Lagena sulcata. 



Entosolenia globosa. 



E. squamosa. 



Globigerina bulloides. 



As usual in the Canadian Pleistocene, Polystomella crispa 

 is much more abundant than the other species. Nonionina 

 scapha comes next in this respect, and all the others are rare. 

 The material also contains numerous spicules of siliceous 

 sponges. 



The above fossils may be regarded as characteristic of the 

 Upper Leda Clay and Saxicava sand, both of which mem- 

 bers of the Pleistocene formation appear to be represented 

 in Anticosti. 



It would also appear that, as elsewhere in Canada, the Leda 

 Clay is overlaid by a second or newer boulder deposit con- 



