SECTION A.] NORTH AMERICAN CONCHOLOGY. 



629 



Russell. — Retrospect of some of the Shells found in Essex 

 County : by Rev. John Lewis Russell. (From Journal of 

 the Essex County Natural History Society. Third and last 

 number. Salem, Mass., 1852.) 



[No descriptions are given. — W. G. B.] 



Page. 



110 Anodon fluviatilis Lea. 



110 implicatus Say. 



111 Astarte castanea Say. 

 Ill Anomia ephippium Linn. 

 Ill Ancylus rivularis Say. 

 Ill Auricula bidentata. 



Ill Buccinum obsoletum Ad. 



Ill plicosum Mice. 



Ill trivittatum Ad. 



Ill undatum Linn. 



Ill Bulla triticea Couth. 



] 11 Cancellaria Couthouyi Jay. 



Ill Cardium pinnatulum Conr. 



Ill Crepidula fornicata Lata. 



Ill plana Say. 



Ill Chiton fulminatus Couth. 



Ill Cingula minuta. 



Ill Cochlodesma Leana Conr. 



Ill Cumingia tellinoides Conr. 



Ill Cyprina islandica Lam. 



Ill Fusus decemcostatus Say. 



Ill islandicus Mart. 



Ill harpularius Couth. 



Ill Glycimeris siliqua Lam. 



Ill Lacuna vincta. 



Ill Littorina palliata. 



Ill rudis. 



Ill tenebrosa. 



Ill Lottia alveus. 



Ill testudinalis. 



Ill Machaera costata. 



Ill Mactra solidissima Chemn. 



Ill Margarita arctica Leach. 



111 cinerea. 



112 obscura. 



112 undulata Sowb. 



Page. 



112 



112 



112 



112 



112 



112 

 112 

 112 

 112 

 112 

 112 

 112 

 112 

 112 

 112 

 112 

 112 



112 



112 

 112 



112 

 112 

 112 

 112 

 112 

 113 

 113 

 113 

 113 

 113 



113 



Mesodesma arctata. 

 Modiola discrepans Mont. 



modiolus Turt. 



plicatula Lam. 

 Mytilus edulis Linn. 



M. pellucidus Fenn. 



pellucidus. 

 Mya arenaria Linn. 

 Natica clausa Br. $• Sowb. 



heros Say. 



triseriata Say. 

 Nucula limatula Say. 



minuta Tart. 



myalis Couth. 

 Pandora trilineata Say. 

 Pecten magellanicus Lam. 

 Petricola pholadiformis 

 Pholascrispata £/hm. [Lam. 



P. lamellata Tint. 

 Purpura lapillus Lam. 



P. imbricata. 

 Pyramis striatula Couth. 

 Rostellaria occideutalis 



Beck. 

 Sanguinolaria fusca Conr. 



sordida Couth. 

 Saxicava distorta Say. 

 Scalaria GraenlandicaCView. 

 Solen ensis Linn. 

 Solemya velum Say. 

 Thracia Conradi Couth. 

 Tellina polita Say. 



tenera Say. 

 Terebratula caput-ser- 



pentis Lam. 

 Teredo navalis Linn. 



