4O NEW YORK STATE MUSEUM 



Helix monodon Rack. Smith & Pjime, An. Lye. N. Y. 1870. 



9:380. (Westchester county) 

 Stenotrema monodon Rack. Lewis, Buf. Soc. Nat. Sci. Bui. 2. 



1874. p.i3i 



Helix monodon Rack. Beauchamp, Onondaga List. 1886. p.i 

 Stenotrema monodon Rack. Walton, Rochester Acad. Sci. 



Proc. 1892. 2:7. (Rochester) 

 Polygyra monodon Rack. Pilsbry, List Naut. 1898. p. 14 



Polygyra monodon fraterna Say 

 Helix fraterna Say. Jay, Cat. 1852. p. 140 

 Stenotrema monodon var. fraterna Say. Walton, Roches- 

 ter Acad. Sci. Proc. 1892. 2:7. (Rochester) 

 Polygyra monodon fraterna Say. Pilsbry, List Naut. 1898. 



P-'5 



Polygyra leai Ward 



Stenotrema monodon var. 1 e a i i Ward. Walton, Rochester 

 Acad. Sci. Proc. 1892. 2:7. (Rochester) 



Genus VALLONIA Risso 



Vallonia pulchella Muller 



Helix minuta Say. DeKay, Nat. Hist. N. Y. 1843. p-4o. 



(Essex county) 



Vallonia minuta Say. Tryon, Am. Jour. Conch. 1867. 3:36 

 Helix minuta Say. Aldrich, Troy List. 1867. p.5. (Mohawk flats) 

 Helix pulchella Mull. Binney, Smith. Misc. Coll. 194. 1869. 



P-'ST 

 Helix pulchella Mull. Smith & Prime, An. Lye. N. Y. 1870, 



9:403. (Long Island) 

 Vallonia pulchella Mull. Lewis, Buf. Soc. Nat. Sci. Bui. 2. 



1874. p.i32 



Helix pulchella Mull. Beauchamp, Onondaga List. 1886. p. 2 

 Vallonia pulchella Mull. Walton, Rochester Acad. Sci. Proc. 



1892, 2:7. (Pittsford) 

 Vallonia pulchella Mull. Pilsbry, List Naut. 1898. p.7 



Vallonia excentrica Sterki 

 Vallonia excentrica Stk. Pilsbry, List Naut. 1898. p-7 



Vallonia costata Muller 

 Vallonia costata Mull. Pilsbry, List Naut. 1898. p.7 



