and of its Dependencit 8. '■ ! s 1 



Pecten Jslandicus, Mull. Connecticut to Greenland, Behring\s 

 Straits, Spitzbergen to Drontheim. 



P. brunneus, St. Connecticut. 



Leda U nuistdcata, St. Newport to Nova Scotia. 



Mydhix Jisrrrj, (ins, Mont. Connecticut to Eastport, Europe 



Thyasira Govldii, St. South Carolina, Stonington to Gulf of St. 

 Lawrence. 



Lucvna JUosa, St. Stonington (fide Linsley), Mass. Bay to Maine. 



Astarte quadrans, Gld. Stonington to Casco Bay. 



Aphrodite Groznhmdira, St. Stonington to Spitzbergen. 



Martesia (JDiplothyra) Smithii, Tr. Staten Island. 



Lanthina fragttis, Desh. Oceanic. 



Margarita obscura, Gld. Stonington to Nova Scotia ; Finmark 

 to North of Spain. 



Lacuna neritoidea, Gld. New York to Newfoundland. 



Scalaria mtdtistriata, Say. Georgia to Buzzard's Bay. 



/\ Gra-nhiiidica, Gld. Nantucket to Greenland. 



Odostomia umpressa, Say. South Carolina to Connecticut. 



Triton! a, ,t pygmewm, St. Newport to Nova Scotia. 



MaiKjillu Licnrinato, St. Stonington (fide Linsley) to Gulf of St. 

 Lawrence. 



Bulla trilicea, Couth. Stonington to Eastport. 



The following species are either not mentioned at all by 

 De Kay as Xew York species or doubtfully so : — 



Anomia ephippiwm, Linn., var. Asmninea 



aculeaf'i. Skenea 



Area ponderosa, Say. Gozcwm pidchellum, Si. 



JVucula proxvma, Say. G. Gooperi, Smith. 



Leda sapotUla, St. Gerithiwn Greenii, < '. B. Ad. 



L. limatula, St. G. nigrocinctum, < '. B. Ail. 



Mytilu8 decu88atu8, .Mont. Vermetvs radicida, St. 



M. corrugatus, St. Scalaria lineata, Say. 



.1/. Icevigatus, St. 8. Humphreysii, BLiener. 



M. hamatus, Say. Evlima subangidata, St. 



Sphceriiym secu/ris, Pr. Stylifer 



Pindium ab litum, Htld. Ghemnit:i>< proilncta, St. 



