70 



Unio infucatiis, 

 lienosus, 



lineolatus, 



lapillus, 



leptodon, 



laevigatus, 

 lanceolatus, 



laBvissimus, 

 latus, 



Co7irad, 

 Conrad, 



Raf. 



Say, 



Raf. 



Raf. 

 Lea, 



^ depressa, 

 ' ellipsaria, 

 securis, 



fabalis, 



Raf. 

 Raf 



Lea, 

 Lea, 



rSymphynota tenuis- 

 J sima, Lea, 



j Anodonta purpuras- 

 l^ cens, Swainson, 



lens, Lea, 



C Anodonta ohiensis, Raf. 



< Symphynota Isevis- 



(^ sima, Lea, 



C Anodonta lata, Raf. 



< dehiscens. Say, 

 f oriens, Lea, 



