CATALOGUE OF UNIOS, ETC. 19 



No, 59. Alasmodonta coufrag^osa, Say. 

 No, 60. Alasmodonta complanata, Barnes. 



No, 61. Alasmodonta rug^osa, Barnes. 



costata, Raf. 



No. 62. Alasmodonta truncata, Say. 



No. 63. Anodouta areolata, Swainson 

 Alas, edentula, Say. 



No. 64. Anodonta Ferussaciana, Lea. 



No. 65. . Anodonta imbecilis, Say. 



incerta, Lea. 



No. 66. Anodonta pavonia, Lea. 



Wardiana, Lea. 



No. 6*7. Anodonta plana, Lea. 



decora, (young,) Lea. 

 grandis ? Say. 

 gigantea, Lea. 



