NORTH AMERICAN CONCHOLOGY. 



5t 



Page. 



14 Patella. 



15 



15 

 15 



Class MOLLITSCA. 



Order Gasteropoda. 

 PHYLLIDIANA. 



Order Trachel ipoda. 



MELANIANA. 

 Melania Virginica Say. | 15 Melania depygis Say. 



PERISTOMIANA. 

 Valvata tricarinata Say. I 15 Paludina decisa Say. 



sine era Say. 



ponderosa Say. 



De Kny. — Catalogue of the Animals belonging to the State of 

 New York, as far as they have been figured and described : by 

 J. E. De Kay. Assembly No. 50. Jan. 1, 1839. (No de- 

 scriptions.) 



