408 Newer Pliocene and Post Pliocene Deposits 



vag to the former, and in its lower part to the latter. ' The more 

 fossiliferous part of the clay at this place, may thus represent a 

 depth intermediate between that of our Saxicava sand and that of 

 our Leda clay. 



In many parts of Lower Canada, sea shells occur at the same 

 level as those above described, and in similar beds, but not having 

 examined them, I am not prepared to say much as to their bathy- 

 metrical conditions. 



The celebrated locality of the capelin and lump-sucker, at 

 Green's Creek on the Ottawa, appears to belong to this level, 

 its elevation being 118 feet above Lake St. Peter.* The shells 

 that I have seen from this place are littoral, principally Mytilus 

 edulis and Saxicava rugosa, but I have been favoured by Sir 

 W. E. Logan with the inspection of a collection of the nodules 

 found in the clay at this place, among which is one containing 

 Leda Portlandica, and the young of another resembling Leda 

 pygmaea, in a tuft of delicate seaweed, in which they may have been 

 drifted to the shore. In another of these nodules are the remains 

 of an organism which appears to have been a star fish of the 

 family Ophiuridae. Other nodules contain seaweeds of several 

 species, and leaves of land plants, which will be noticed in the 

 sequel. 



The locality at Beauport, near Quebec, rendered classic by 

 Captain Bayfield and Sir C. Lyell, belongs to this same level, and 

 has afforded the following species not hitherto found at Montreal, 

 beside many of those above enumerated. 



Natica Groenlandica. 



Natica heros. 



Turritella erosa. 



Scalaria Groenlandica. 



Littorina palliata. 



Cardium Groenlandicum. 



Cardium Islandicum. 



Pecten Islandicus. 



Rhynconella psittacea. 



Echinus granulatus. 

 I infer from the sections given by Lyell, Bayfield, and 

 Emmons, that there may be at Beauport, as at Montreal, a dis- ■ 

 tinction between the beds containing oceanic and deep sea shells, 



* Mr. Murray, Reports of Geological Survey. 



