■74 CANADIAN FOSSILS. 



to shew that they do not belong to any known species. One of 

 them appears to be a Glyptocystites, and the other will I think yet 

 turn out to be a small Cystidean of a new genus, with a nearly 

 globular body, and three or four pectinated rhombs. I have seen 

 them only in the Trenton limestone at Ottawa. 



