NORTH AMERICAN CONCIIOLOGY. 



119 



Name. 

 Anodon edentula Say. 



Alasmodonta edentula Say. 

 Anodon areolatus Swainson. 

 plana Lea. 

 excurvata De Kay. 

 implicata Say. 



A. Newtoniensis Lea. 



marginata Say (young), 

 fluviatilis Dilhvyn. 

 A. cataracta Say. 

 pavonia Lea. 

 Benedictensis Lea. 



Symphynota Benedictensis Lea. 



Cardidae. 



Locality. 



