NORTH AMERICAN CONCHOLOGY. 



219 



Name. 

 Cyclas elegans Ad. 

 Cytherea convexa Stnj. 

 Cardium pinnulatum Conr. 



Mortoni ('"»r. 

 Chiton albus ^font. 



C. sagriuatits Couth. 

 Cingula minuta Gould. 



Turbo iniiititus Totten. 

 Cerithium Etnersonii Ad. 

 terebrale Ad. 

 nigrocinctum Ad. 

 Sayi Mice. 



C reticulatum Totten. 

 Greeni Ad. 

 Helix albolabris Say. 

 alternata Soi/. 

 striatella Anth. 

 arborea Say. 

 electrina Gould. 

 chersina Say. 

 labyrinthica Say. 

 indentata Say. 

 pulchella Mull. 

 II. minuta Say. 



? 



Kellia rubra Turt. 



Cardium rulirum Mont. 

 Lottia testudinalis Gould. 



I'dlilla (tnuoia Say. 

 Limnaea columella Say. 

 macrostonia Say. 

 umbilicata Ad. 

 Littorina rudis Don. 



Turbo ohligatus Say. 

 tenebrosa Gould. 



Turlio vcstitus Say. 

 palliata Gould. 



Turfio palliatus Say. 

 Lacuna vincta Gould. 

 L. jierlitsa Conr. 

 Mya arenaria Linn. 



M. mirrcnnria Say. 

 Mactra solidissima Cliemn. 

 M. giijautia Lam. 

 lateralis Say. 



Name. 



Montacuta bidentata Turi. 

 Modiola plicatula Lam. 



Mytilus demissus Dillw. 



barbata Lam. 

 Mytilus edulis Linn. 



var. pellucidus Penn. 

 Nucula limatula Say. 



proxima Say. 

 Natica heros Say. 



triseriata Say. 



duplicata Say. 

 Osteodesma hyalina Couth. 



Mya hyalina Cour. 



Ostrea borealis Lam. 



Virginiana Littt. 

 Odostomia producta Gould. 



Jaminia producta Ad. 

 fuse a Gould. 



Jaminia fusca Ad. 



exigua Gould. 



Jaminia exiijua Ad. 

 Pholas costata Linn. 



crispata Linn. 

 Pandora triseriata Say. 



P. }wsuta Sowb. 

 Petricola pholadiformis Lam. 

 P. foniicata Say. 



dactylus Son-h. 

 Pecten concentricus Say. 

 Paludina decisa Say. 

 Pupa milium Gould. 



Tappaniana ]Va>rI. 

 Planorbis lentus Say. 



campanulatus Say. 



armigerus Say. 



parvus Say. 



virens. 



bicarinatus Say. 

 Phjrsa heterostropha Say. 



elongata Say. 

 Pleurotoma plicata Ad. 

 Pyrula canaliculata Say. 



spirata Kitner. 



carica Urug. 

 Purpura lapillus Lam. 



