38 NEW YORK STATE MUSEUM 



Helix palliata Say. Say, Conch. U. S. ed. by Binney. 1858. p. 16. 

 (Niagara) 



Xolotrema palliata Say. Try on, Am. Jour. Conch. 1867. 

 3:49 



Helix palliata Say. Aldrich, Troy List. 1867. p. 5. (Near Troy) 

 Helix palliata Say. Binney, Smith. Misc. Coll. 194. 1869. 8:123 

 Triodopsis palliata Say. Lewis, Btif. Soc. Nat. Sci. Bui. 2. 

 1874. p.131 



Helix palliata Say. Beauchamp, Onondaga List. 1886. p.i 

 Triodopsis palliata Say. Walton, Rochester Acad. Sci. Proc. 



1892. 2:7. (Pittsford) 

 Polygyra palliata Say. Pilsbry, List Naut. 1898. p. 13 



Polygyra appressa Say 



Helix appressa Say. DeKay, Nat. 'Hist. N. Y. 1843. p. 27 



Helix appressa Say. Jay, Cat. 1852. p. 120 



Helix appressa Say. Say, Conch. U. S, ed. by Binney. 1858. 



p. 15. (Niagara falls) 

 Xolotrema appressa Say. Tyron, Am. Jour. Conch. 1867. 3:50 

 Helix appressa Say. Binney, Smith. Misc. Coll. 194. 1869. 8:126 

 Polygyra appressa Say. Pilsbry, List Naut. 1898. p. 13 



Polygyra elevata Say 



Helix elevata Say. DeKay, Nat. Hist. N. Y. 1843. p. 36 

 Xolotrema elevata Say. Tryon, Am. Jour. Conch. 1867. 3:48 

 Helix elevata Say. Binney, Smith. Misc. Coll. 194. 1869. 8:142 

 Mesodon elevata Say. Lewis, Buf. Soc. Nat. Sci. Bui. 2. 1871. 



P-I3I 



Polygyra elevata Say. Pilsbry, List Naut. 1898. p 13 



Polygyra pennsylvanica Green 

 Helix pennsylvanica Green. DeKay, Nat. Hist. N. Y. 1843. 

 p.41 



Helix pennsylvanica Green. Binney, Smith. Misc. Coll. 194. 

 1869 8:140 



Polygyra pennsylvanica Green. Pilsbry, List Naut. 1898. p. 13 



Polygyra thyroides Say 



Helix thyroidus Say. DeKay, Nat. Hist. N. Y. 1843. p.29 

 Helix thyroides Say. Jay, Cat. 1852. p. 180 

 Helix thyroidus Say. Say, Conch. U. S. ed. by Binney. 1858. 

 p. 3 1. (Niagara falls) 



