NORTH AMERICAN CONCHOLOGY. 



255 



NrcB 



. Ed. 



Binnet's Ed. 



piT 



Fig. 



Pa. 



PI. Fig 



ii 



8 



51 



Ixs 8 



iv 



1 



52 



Ixxii 1 



iv 



2 



52 



Ixxii 2 



iv 



3 



52 



Ixxii 3 



iii 



3 



53 



Ixxi 3 



iii 



4 



53 



Ixxi 4 



iii 



5 



53 



Ixxi 5 



iii 



6 



54 



Ixxi 6 



i 



9 



54 



Ixix 9 



i 



10 



55 



Ixix 10 



Unio ochraceus Sai/. 



nasutus Say. 



alatus Say. 



cylindricus Say. 



undulatus Say = 

 Monodonta Say (n. g.) 

 Anodonta cataracta Say. 



marginata Say. 



undulata Say. 

 Cyclas similis Say. Delaware. 



dubia Say. Delaware. 



Locality. 



Delaware & Schuylkill. 



Delaware & Schuylkill. 



Lake Erie. 



Wabash river. 



Delaware & Schuylkill. 



Say. — 2. The second edition of the same (vol. iv, 1818) contains 

 the article "Conchology." The references to the plates and 

 localities, being the same as in the first edition, are not repeated. 

 The pages are not numbered. 



Odostomia corticaria Say. 

 Unio crassus Say. 



plicatus Say. 



purpureus Say. 



ovatus Say. 



cariosus Say. 



Musculus latior, &c. List. 



ochraceus Sny. 



nasutus Say. 



Mitsculusfuscus, &c. List. 



alatus Say. 



cylindricus Say. 

 Monodonta Say (□. g.) 



undulatus Say. 

 Anodonta cataracta Say. 



marginata Say. 



undulata Say. 

 Cyclas similis Say. 



dubia Say. 



P. of re 



pr. 





P. ofr 



5 



Helix albolabris Say. 





7 



5 



thyroidus Say. 





49 



5 



arboreus Say. 





50 



6 



tridentata Say. 





50 



G 



alternata Say. 





50 





II. radiala Grael. 





51 





Cochlea uvibilicata, 



&c. 





7 



glaphyra Say. [Li 



ster. 



51 



44 



Piano r bis trivolvis Say. 

 Cochlea trium orbium,&c. 



52 





Lister. 





52 



44 



bicarinatus Say. 





52 



45 



parvus Sny. 





53 



45 



Lymnaea catascoplum 



Say. 



53 



46 



jugularis Say. 





53 



4G 



heterostropha tSay 





53 



47 



Bubcarinata Say. 





53 



47 



virginica Say. 





54 



48 



vivipara Liiin. 





55 



49 



decisa Say. 







