NORTH AMERICAN CONCHOLOGY. 



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Name. 

 Ancylus depressus Hold. 



obscurus Hald. 

 Bullina canaliculata Say. 

 Bulla debilis Gould. 

 Gouldii Couth. 

 Memalis Couth. 

 insculpta Totten. 

 lineolata Couth. 

 obstricta Gould. 

 oryza Totten. 

 triticea Couth. 

 pertenuis Mighels. 

 Vitrina pellucida Drap, 

 Helix albolabris Say, 

 alternata Say. 

 appressa Say. 

 arborea Say. 

 avara Ferussac. 

 auriculata Lam. 

 clausa Say. 

 cellaria Mull. 

 concava Say. 

 Columbiana Lea. 

 Cumberlandicus Lea. 

 dentifera Binney. 

 dealbata Say. 

 demissa Say. 

 diodonta Say. 

 Dorfeuilliana Lea. 

 elevata Sny. 

 electrina Gould. 

 Edgarina T-^ta. 

 egena Smj. 

 fatigata IJinney. 

 fraterna Say. 

 fuliginosa Grij/'. 

 glaphyra Say. 

 gularis Say. 

 hortensis Mull 

 harpa -Sv^^. 

 hirsuta Say. 

 inornata Say. 

 inflecta Say. 

 indentata Say. 

 interna Say. 



Locality. 

 Holstein river, Va. 

 Nolacliucky riv., Tenn. 

 St. Simon's island, Ga, 

 Massachusetts bay. 

 Massacliusetts bay. 

 Massachusetts bay. 

 New York bay. 

 Massachusetts bay. 

 New York bay. 

 Newport river. 

 Massachusetts bay. 

 Maine. 



Iowa Territory. 

 United States. 

 New York to Ohio. 

 Western States. 

 Mass. to Ohio. 

 Florida. 

 Florida. 

 Western States 

 Massachusetts. 



Ohio. 



Oregon Territory. 



Tennessee. 



Vermont. 



Missouri. 



Alabama. 



Ohio. 



Ohio. 



Western States. 



Cambridge, Mass 



Tennessee. 



Pennsylvania. 



Vermont. 



East'n <Sc West'n States. 



Ohio. 



Ohio. 



Ohio. 



Portsmouth, N. II. 



Southwestern States. 



Staten Island. 



Pennsylvania. 



Western States. 



Ohio. 



Kentucky. 



