180 



Report on tfu Mollusca of Long Island, N. Y.. 



/'/</, a rupicola, Say. 

 II fie tridentata, Say. 



S. ov.alis, Gld. 

 S. obliqua, Say. 



MOLLUSl \ l"l M> IN WESTCHESTER CO., N. Y.. NOT FOUND ON LONG 



[8LAND. 



Spha rili 111 si, nil i . Say. 



S. striatinum, Lam. 



Pisidvu/m Virginicvm, Bgt. 



/'. compre88wm } Pr. 



/'. cequilaterale, Pr. 



/'. .\'i"\ Eboratu use, Pr. 



Li in a' <i caperata, Say. 



Physa ancillaria, Say. 



/'n/iii iirmij'i ra, Say. 

 /A //.'■ //-/''A iitntii. Say. 

 //. monodon, Hack. 

 /A hirsuta, Say. 

 /A sn/ipressa, Say. 

 Siicriiini oralis. Say. 



An examination of the above lists brings to notice tbe fact 

 that though the sulcated species of Sphcerium and Pisidium 



occur in the vicinity they have not been found on Long Island. 

 The following species occur in the Postpleiocene deposits of 

 < rardiner'e tsland •• : — 



/'. /■ n M<nj> Uaitiri's, Lam. 

 . 1 rca transversa, Say. 

 ( 'ardita borealis, < 'on. 

 . i - rte sulcata, Flem. 



I ' mis merct rvaria, Linn. 

 Mmt in luti talis, Say. 



i//./ ,i,i naria, Saj . 



< '. unguifbrmis, Lam. 

 ('In iitiiif-.iit interrupta, St. 

 Pu/rpura lapillus, Lam. 

 Nassa trivittata, Say. 

 .V. yiieaj, Say. 



f lluri-iii a in plicoswm, .Mink 

 Colwmbella lunula. Sowb. 

 Hull, i cancdicidata. Say. 



( ' ,-, j,i<l nlii fomicata, Lam. 



The following marine species, bo far as we are aware, pre- 

 viously to our labors have not been found south of Cape Cod : — 



Mytilus corrugatus, St. A-./" sapotilla, Si. 



.1/. Icevigat/us, St. Chemnitzia bisuturalis, St. 



C. ••>•' niiii '"In, St. 



The "lily marine species recorded <>ii good authority within 

 the range of Cape Cod and Sandy Sook, which have nol been 

 obtained on Long [eland, :ir<' the following: — 



* Aim. Lya N. M.. Y Y.. viii. M'.i. mvi. 



1 1 1 ginre I lir public al inn (if tin < utal< 



