NORTH AMERICAN CONCHOLOGY. 



191 



109 

 109 

 110 

 110 



110 



111 



Family Macrostomata. 



Name. Locality. 



Sigaretus perspectivus Say. Soufh Carolina. 



Haliotis Californiensis Sivains. California. 



corrugata Gray. California. 



Cracherodii Leach. California. 



H. glaber Schub. 



splendens Reeve. California. 



Family Tul>ispiracea. 



Skenea serpuloides Flem. Boston harbor. 



Oeder PLEUROBRANCHIATA. 



Family Bullacea. 



112 Bulla canaliculata Say. New Bedford. 



113 debilis Gould. Massachusetts bay. 

 113 Gouldii Couth. Boston bay. 



113 insculpta Totten. New York, 



113 obstricta Gould. New Bedford. 



113 oryza Totten. New Bedford. 



113 triticea Couth. Boston Bay. 



Oeder PIJLMOBRANCHIATA. 



Family Colimacea. 



119 Helix albolabris Say. 



Tridopsis albolabris Beck. 



119 alternata Say. 



II. scnbra Lam. 



var. //. radiata Gmelin. 



Patula alternata Held. 



Euryomphala alternata Beck. 



120 appressa Say. 



Tridopsis appressa Beck. 



var. Ili'licodonta linyuifera Fer. 



120 arborea Say. 



II. Ottonis Pfr. 



var. Ilelicdla arborea Beck. 



121 areolata Sowerby. 



122 auriculata Say. 



Polyr/yra auriculata Say. 

 var. Ildicodonta auriculata Fer. 

 Daedalochila auriculata Beck. 



N. Y., Georgia, Ohio. 



New York. 



Ohio. 



Tennessee. 

 Massachusetts. 

 New York. 



Missouri. 

 New York. 



Columbia river. 

 Florida. 



St. Augustine. 



