129 



list of Shells fouud near Troy, N. Y.," "which was embodied in the 

 Twenty-second Annual Eeport on the State Cabinet of Natural 

 History. 



The writer of this paper has at various times prepared catalogues 

 of the shell-bearing Molluscs of Herkimer and adjacent counties. 

 He has also enjoyed correspondence with many active collectors 

 whose manuscripts and specimens (hitherto unrecorded) have, with 

 the preceding, contributed toward the present paper. 



Among the gentlemen to whom these acknowledgments are due 

 may be mentioned 



Dr. T. K. Ingalls, late of Greenwich, Washington county. 



Dr. A. J. Skillton, late of Troy. 



Col. E. Jewett, Lockport. 



Mr. W. E. Yager, Oneonta. 



Dr. Caleb Green, Homer, Cortland county. 



Dr. Wm. H. Brown, Cedarville (formerly of Litchfield, Herkimer 

 county). 



Dr. Hubbard, late of Staten Island. 



In addition to these sources of information, it has been necessary 

 to consult various Conchological works of American writers. It 

 will suffice to mention the following : 



Observations on the Genus Unio, etc., by Isaac Lea, LL. D. 



Synopsis of the Family Naiades, 1870, by Isaac Lea, LL. D. 



Rectification of Conrad's Synopsis (reprint), by Isaac Lea, LL. D. 



Terrestrial Molluscs, by Amos Binney, M. D. 



Writings of Thomas Say (reprint), by W. G. Binney. 



Land and Fresh Water Shells,* by W. G. Binney and Thos. Bland. 



Conchological Journal, G. W. Tryon, Jr. 



Strepomatidae,^ by G. W. Tryon, Jr. 



Corbiculadae,'' by Temple Prime. 

 And various fragmentary pajiers by W. G. Binney and others. 



Not having De Kay's original work on the Shells of the State of 

 New York, it will be understood that the compiler of this paper 

 has depended almost entirely on original sources of in format ion for 

 all tliat is here presented. 



2 Smithsonian Miscellaneous Collections, Nos. 143, 144, 194. 



3 Smitlisonian Miscellaneous Collections, No. 253. 

 "■ Smithsonian Miscellaneous Collections, No. 145. 



BCL. BUF. sec. N.\T. SCI. (17) AFGUST, 1874. 



