NORTH AMERICAN CONCHOLOGY. 



26": 



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Name. 

 Pandora trilineata Say. 

 Oliva liter ata LaiJi. 

 Unio triangularis Barnes. 

 U. cuneatus Sw. 

 sulcatus Lea. 



U. Jiagellatus Say MS. 

 ridibundus Say. 

 var. perplexus, 

 monodonta Say. 

 Delphinula? laxa Say. 

 Melania nupera Say. 



depygis Say. 

 Lutraria lineata Say. 



L. pupyracea Lam.? 

 Faludina decisa Say. 



Cochlea Vircjiniana, &c. Lister 

 vivipara Linn. 



Cochlea vivipara, &c. Lister. 



Helix vivipara Linn. 



Nerita vivipara Miill. 



Cyclosloma vivipara Dr. 



Le vivipare d handes GeofF. Cuv 



Locality. 

 S'rn & middle coast. 

 Southern coast. 



Wabasli & Ohio rivs. 



Cumberland river. 



Wabash & Ohio rivs. 



Charleston. 



Wabash river. 



Ohio river. 



N. Jersey to Florida. 



Florida, S. Carolina. 



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Part II.— April, 1831. 



Anodonta suborbiculata Say. Wabash river. 

 Nucula limatula Say. Nahant, Mass. 



laevis Saij (fossil). 

 concentrica Say (fossil). 

 Helix albolabris Say. Canada to S. C 



Cochlea Virginiana, &c. Lister. 

 thyroidus Say. 



Cochlea umbilicata, &c. Lister. 

 ierrestris, &c. SchriJter. 

 Unio ellipsis Lea. 

 subtentus Say. 

 undulatus Barnes. 



U. heros Say. 

 abruptus Say. 

 Solecurtus costatus Soy. 



Soil n costatus Say. 

 Fulgur pyruloides Say. 



Bulla Jicus (var. b) Gmelin. 

 Pyrula spirata Lam. 

 Bulla pyrum Dillw. 



Ilolstein river, S. C. 

 Fox br. of Wabash. 



Wabash jiver. 

 Mass. to N. Jersey. 



South of New Jersey. 



