NORTH AMERICAN CONCHOLOGY. 



261 



December, 1822. — Descriptions of Univalve, Terrestrial, and Flu- 

 viatile Shells of the United States. 



Helix irrorata Say. 



inornata Say. 



indentata Say. 



lineata Say. 

 Bulimus multilatus Say. 

 Pupa contracta Say. 



exigua Say. 

 Vertigo ovata Say. 



pentodon Say. 

 Melampus obliquus Say. 

 Lymneus humilus Say. 

 Paludiua grana Say. 

 Melania catenaria Say. 



multilineata Say. 

 Cyclas rhomboida Say. 



partumeia Say. 



Northumberl'd Co., Pa. 



Pennsylvania. 



Pennsylvania, N. J. 



Near Philadelphia. 



South Carolina. 



Virginia. 



Harrowgate. 



Harrowgate. 



Pennsylvania. 



South Carolina. 



S. C. and Oswego. 



Pennsylvania. 



South Carolina. 



Delaware. 



Lake Champlain. 



Germantown. 



