NORTII AMERICAN CONCIIOLOGY. 



235 



Page. 



Subgenus Araodouta. 

 Page. 



(Symphtnotr.) 



(a. Smooth.) 



48 Anodonta BenedictensisZea. 



Symph. Benedictensisluea. 



(Xox-Symphyrote.) 

 (b. Smooth.) 

 50 fragilis Lam. 



50 undulata Say. . 



Anodon rugosus Swain. 

 Anodonta Pennsylvanica 

 Lam. 

 50 Wardiana Lea. 



A. virgata Conrad. 



50 edentula Lea. 



Alas, edentula Say. 

 Anodon areolatus Swain. 



51 Ferussaciana Lea. 

 51 salmonia Lea. 



51 incerta Lea. 



51 fluviatilis Lea. 



Myt. fluviatilis Soland. 



Myt. illitus Soland. 

 A. cataracta Say. 



implicata? Say. 



teres Conrad. 



51 Anodonta glauca Valcn. 



A. glauca Lam. 



52 ovata Lea. 

 52 plana Lea. 



A. declivis Conrad. 

 52 decora Lea. 



52 gigantea Lea. 



52 subvexa Conrad. 



52 Stewartiana Lea. 



52 globosa Say. 



A. inflata Maj. LeConte'3 

 cabinet. 

 52 grandis Say. 



A. corpulenta Coop. 

 52 suborbiculata Say. 



54 cylindracea Lea. 



54 Buchanensis Lea. 



[The following species are unknown to the author. — W. G. B.] 

 Page. I Page. 



54 Anodonta imbecilis Say. 54 Anodonta impura Say. 



54 lugubris Say. \ 



[A list of uncertain species of Rafinesque is given on pp. 58 and 59. 

 is the same as copied from the third edition. — W. Gr. B.] 



In the Addenda, Anodonta marginata Say = A. fluviatilis. 



Unio Dorfeuillianus Lea. 

 graniferus Lea. 

 Rangianus Lea. 

 Menkianus Lea. 

 discus Lea. 

 contradens Lea. 



Anodonta Nuttalliana Lea. 

 Wahlamatensis Lea. 

 Oregonensis Lea. 

 pavonia Lea. 

 Newtonensis Lea. 



