I20 JOURNAL AND PROCEEDINGS 



Unio pressus, Lea. 



A few specimens from the Canal, near Dundas. 



SUB-GENUS MAEGARITANA, SCHUM. 



Margaritana marginata, Say. 



A specimen of this shell was given to me as having been taken 

 at the Beach. 



SUB-GENUS ANODONTA, BEUG. 



Anodonta ovata, Lea. 



A few specimens from Dundas Marsh. 



Anodonta plana. 



Carroll's Point, common. 



Anodonta benedictii, Lea. 



Common, same locality as last. 



Anodonta fluviatilis, Dillwyti. 



Occurs at Carroll s Point, and in some of the creeks running 



into the Bay. 

 Some Anodons from the Marsh, when determined, may add two 



or three species to this list. 



