MOLLUSCA OF NEW YORK 21 



Amnicola cincinnatiensis Anth. Lewis, Buf. Soc. Nat. Sci. 



Bui. 2. 1874. p.i 38 

 Amnicola cincinnatiensis Anth. Beauchamp, Onondaga List. 



1886. p. 5. (Erie canal) 



Amnicola orbiculata Lea 



Amnicola orbiculata Lea. Binney, Smith. Misc. Coll. 144. 1865. 



7:87. (Cayuga lake) 

 Amnicola orbiculata Lea. Lewis, Buf. Soc. Nat. Sci. Bui. 2. 



1874. p. 138. (Cayuga lake) 

 Amnicola orbiculata Lea. Beauchamp, Onondaga List. 1 886. 



P-5 



Amnicola orbiculata Lea. Walton, Rochester Acad. Sci. 

 Proc. 1892. 2:4 



Amnicola lustrica Say 



Amnicola lustrica Say. DeKay, Nat. Hist. N. Y. 1843. P-^7- 



(Lakes Champlain and Cayuga) 

 Paludina lustrica Say. Say, Conch. U. S. ed. by Binney. 1858. 



p. 69. (Cayuga lake) 

 Pomatiopsis lustrica Say. Binney, Smith. Misc. Coll. 144. 1865. 



7:94. (Cayuga lake and Mohawk river) 



Amnicola lustrica Say. Aldrich, Troy List. 1867. p. 5. (Hud- 

 son river) 

 Amnicola lustrica Say. Lewis, Buf. Soc. Nat. Sci. Bui. 2. 1874. 



p. 138. (Cayuga lake) 



Amnicola lustrica Say. Beauchamp, Onondaga List. 1886. p.$ 

 Pomatiopsis lustrica Say. Walton, Rochester Acad. Sci. Proc. 



1892. 2:4 



Amnicola letsoni Walker 

 Amnicola letsoni Walk. Walker, Naut. 1901. 14:113. (Goat 



island. Post-Pliocene) 

 Amnicola letsoni Walk. Letson, N. Y. State Mus. Bui. 45. 



1901. p. 24 1. (Goat island. Post-Pliocene) 

 Genus LYOGYRUS Gill 

 Lyogyrus granum Say 

 Amnicola granua Say. Beauchamp, Onondaga List. 1886. p. 5. 



(Seneca river) 

 Amnicola granum Say. Walton, Rochester Acad. Sci. Proc. 



1892. 2:4 



