NORTH AMERICAN CONCHOLOGT. 



11 



Is^o. VIII. (No date.) 



Pa. 



PI. Fig. 



Name. 



Locality. 



7 



i 2,3 



Amnicola decisa Hald. 



Susq. & Schuylk. rivs. 



9 



i 4 



Cincinnatiensis Anthony. 



Cincinnati. 







Paludina Cincinnatiensis Antli. 



10 



i 5,6 



limosa Say. 



Maine to Penn'a and 







Paludina limosa Say. 



Ohio. 







Pal. porata Adams & Gonld. 









A. lustrica Hald. in lett. 





12 



i 7 



pallida Hald. 



Pal. lustrica Adams. 



Lake CLamplain. 



13 



i 8 



porata Say. 



Paludina porata Say. 



Cayuga Lake. 



15 



i 9 



galbana Hald. (fossil). 



Sussex Co., N. Jersey. 



16 





lustrica Say. 



Paludina lustrica Say. 



Cayuga Lake. 



17 





granum Say. 



Paludina grana Say. 



Pliiladelphia. 



18 



i 10 



lapidaria Say. 



East and west of AUe- 







Pal. lapidaria Say. 



ghanies. 



19 



i 11 



Sayana Anthony, in lett. 



Cincinnati. 







Cyclostonia Cincinnatiensis Lea. 



21 



i 12 



Nickliniana Lea. 

 Paludina Nickliniana Lea. 



Virginia. 



22 



i 13 



attenuata Hald. 

 A. elongata in tab. 



Montgomery Co., Va. 



23 



i 14-15 



tenuipes Couper. 



Georgia. 



24 





orbiculata Lea. 



Ohio, Philadelphia. 



24 





parva Lea, 



Springfield, Ohio. 



24 





obtusa Lea (Paludina). 



Ohio. 



5 



i,ii 



Ampullaria depressa Say. 

 A. paludosa Say. 

 Hopetonensis Lea. 



Georgia, Florida. 



8 





globosa Swainson. 

 A. rotundata Say. 



Florida? Calcutta? 



10 





flagellata Say. 



Mexico. 



11 





urceua Mailer . 

 A. rurjosa Lam. 



Mexico. 



11 





Paludina intertexta Say. = Ampullaria? 



11 





ponderosa Say, is a true Paludina. 



3 



i 1-4 



Valvata tricarinata Say. 



N. England and Middle 







Cyclostonia tricarinata Say. 



States, &c. 



Valvata carinata Sowb. 

 var. Bimplez Gould. 

 var. ? bicarinata Lea. 

 var. ? unicarinata De Kay. 



Schuylkill river. 



