NORTH AMERICAN CONCHOLOGY. 



161 



Vertigo ovata Say. 



Pupa vwdi'sta Say. 

 Pupa contracta Say. 

 armifera Say. 

 fallax Say. 



Cyclostoma marginata Say. 

 P. placida Say. 

 albilabris Ward. 

 Bulimus lubricus Brug. 

 Helix albolabris Say. 

 thyroiditis Say. 

 tridentata Say. 



II. fallax (var. ?) Say. 

 hirsuta Say. 

 pulchella Miiller. 

 II. tninuta Say. 



paludosa Montagu. 

 labyrinthica Say. 

 alternata Say. 



H. scabra Lam. 

 radiata Gmelin. 

 Helix concava Say. 



II. planorboides Ferussac. 

 cellaria Miiller. 



H. glaphyra Say (naturalized). 

 suppressa Say. 

 indentata Say. 

 electrina Gould. 

 arborea Say. 

 chersina Say. 

 lineata Say. 

 Succinea obliqua Say. 

 S. oralis Say. 



campestris Gould. 

 avara Say. 



S. vermela? Say, Adams. 

 Limax agrestis Miiller. 

 L. tunicata Gould. 



StimpsOIl, — Shells of New England; a revision of the Synon- 

 ymy of the Testaceous Mollusks of New England, with Notes 

 on their Structure and their Geographical and Bathymetrical 

 Distribution, with figures of new species : by William Stimp- 

 son. Boston, 1851. 



ACEPHALA. 



BRACHIOPODA. 

 Teretoratulidae. 



7 Terebratula septentrionalis 



Couth. 



T. caput-serpentis Gould. 



Page. 

 7 Hypothyris psittacea King. 



Terebratula psittacea 



Lam. 



LAMELLIBRA]\CHIATA. 

 Anomiadae. 



7 Anomia ephippium Linn. 

 var. aculeata. 



var. squamula. 

 var. electrica. 



Os tread a?. 



Ostrea borealis Lam. 

 11 



