472 Canadian Record of Science 



Pakeoncilo (cf. Maxima Clarke) helena, Williams. 

 Devonian. 

 St. Helen's Island, Montreal. 

 Collector — Ed. Ardley. 

 No. 2521, 1, 23, Card No. 5546. 



Trans. Royal Society of Canada, Third Series, Vol. 

 III., Section IV., 1909-10. 



Modiomorpha helena, Williams (cf. concentrica) . 

 Devonian. 

 St. Helen's Island, Montreal. 

 Collector — Ed. Ardley. 

 No. 2521, 1, 22, Card No. 5545. 



Trans. Royal Society of Canada, Third Series, Vol. 

 III., Section IV., 1909-10. 



Naiadites caroonarius, Dn. 



Carboniferous. 



So. Joggins, Nova Scotia. 

 Collector — Sir W. Dawson. 

 Canadian Record of Science, Vol. VI., 1894. 



Naiadites longus, Dn. 

 Carboniferous. 

 So. Joggins, Nova Scotia. 

 Collector — Sir W. Dawson. 



Quart. Journal, Geological Society, 1894, Plate XX., 

 Fig. 1. 



Naiadites mytiloides, Dn. 

 Carboniferous. 



Chimney Corner, Cape Breton. 

 Collector — Mr. Neighswander. 

 Canadian Record of Science, Vol. VI., 1894. 



Anthracoyma clongata, Dn. 

 Middle carboniferous. 

 So. Joggins, Nova Scotia. 



