I'LKISTOCKNK FOSSILS. 265 



Tlie valve is evidently that of an Kstheria, much truncated an- 

 teriorly, and wit), the lines ..f yn.wth n.uch thicker, higher and closer 

 together than in any North American species known to us, and may 

 prove, when Letter specimens are found, to he allied to the tertiary 

 Silierian E, middeudorji. 



Insectd. 

 Fornax' ledensin. Scudder. 



This is an elytron of a i)eetlc in a nodule from (Ireen's Creek, along 

 with a skeleton of M,lht>,s Vi'.hmx. Scudder, who has kindly exam- 

 ined It, regards it as representing a new species allied to F. culreatua of 

 North America. It has l,een described by Dr. S. in his volunio on 

 I ertiary insects. 



^ Scudder in his work on Fossil Insects and previously in Reports to the 

 L'. S. (ieological Survey, notices the insects collected by Hinde in the 

 iMterglacial ))eds at Scarborough, on Lake Ontario. He regards these 

 insects as extinct species, but nearly related to modern temperate forms, 

 and in no respect an Arctic assemblage. This agrees with th 3 evidence 

 of the fossil plants. 



PROVINCK VKRTKBRATA. 

 Tlie vertehratc animals of the Pleistocene are few; and 

 we can scarcely include in this formation the Mastodon 

 or Mammoth, and their contemporaries, as their remains, 

 so far as known in Canada, are rather I'ost-glacial or 

 Modern. The fishes are mostly from nodules in the Leda 

 clay, found at and near (Ireen's Creek on the Ottawa 

 River, and are ordinary northern species. 



If- „ . ... ^^<^^^ Pisces. 



MaUotxis nllosus. Cuvier. 



The common capelin is found in nodules at Green's Creek on the 

 Ottawa. (Plate VII.) 



Osmerus mordax. (iill. 



An imperfect skeleton, apparently referable to the smelt, Green's 

 Creek, Ottawa. 



Cottua (Centrodermichthys) uncinatus. Reinhpvdt, 



Fossil— Nodules from Green's Creek, collection of Mr. J. Stewart 

 Ottawa, and of J. \\\ D. 



