CATALOGUE OF UNIOS, ETC. 19 



No. 59. Alasmodonta confragosa, Say. 



No. 6O. Alasmodonta complanata, Barnes. 



/ No. 61. Alasinod&its* rugosa, Barnes. 

 % costata, Raf. 



No. 62. Alasmodonta truncata, Say. 



No. 63. Anodonta areolata, Swainson 



Alas, edentula, Say. 

 z* ' 



No. 64. Anodonta Femssaciana, Lea. 



No. 65. . Anodonta imbecilis, Say. 



incerta, Lea. 



No. 66. Anodonta pavonia, Lea. 

 Wardiana, Lea. 



/ No. 67. A notion Ui plana, Lea. 



decora, (young,) Lea. 

 grandis? Say. 

 gigantea, Lea. 



