OF THE 



UNIVERSITY 



OF 



OF NEW YORK 1 5 



Cerithiopsis emersoni Stimpson 

 Cerithiopsis emersonii St. Smiih & Prime, An. Lye. N. Y. 



1870. 9:397 

 Cerithiopsis punctatum Linn. Tryon, Man. Conch. 1887. 9:170 



Cerithiopsis terebrale C. B. Adams 

 Cerithiopsis terebellum St. Smith & Prime, An. Lye. N. Y. 



1870. 9:397 

 Cerithiopsis terebrale Ads. Tryon, Man. Conch. 1887. 9:174 



Genus TRIFORIS Deshayes 



Triforis nigrocinctus C. B. Adams 



Cerithium nigrocinctum Ads. Smith & Prime, An. Lye. N. Y. 



1870. 9:394 

 Triforis nigrocinctus Ads. Tryon, Man. Conch. 1887. 9:188 



Family 



Genus PLEUROCERA Rafinesque 



Pleurocera subulare Lea 



Melania subularis Lea. Lea, Obs. Genus Unio. 1834. 1:110, 



(Niagara river) 

 Melania subularis Lea. DeKay, Nat. Hist. N. Y. 1843. p 92. 



(Lake Erie) 



Melania subularis Lea. Jay, Cat. 1852. p.275. (Niagara river) 

 Pleurocera subulare Lea. Tryon, Am. Jour. Conch. 1865. 



1:307. (Erie canal, St Lawrence, Niagara river) 

 Melania subularis Lea. Aldiich, Troy List. 1867. p. 4. 



(Mohawk river) 

 Trypanostoma subulare Lea. Lewis, Buf. Soc. Nat. Sci. Bui. 2. 



1874. p.i 39 

 Pleurocera subulare Lea. Tryon, Smith. Misc. Coll. 253. 1880 



1 6:88. (Niagara river) 



Pleurocera subulare Lea. Beauchamp, Onondaga List. 1886. p. 6 

 Pleurocera subulare Lea. Walton, Rochester Acad. Sci. Proc. 



1892. 2:4. (Lake Erie) 

 Pleurocera subulare Lea. Letson, N. Y. State Mus. Bui. 45. 



1901. p. 239. (Goat island. Post-Pliocene) 



Pleurocera subulare intensum Anthony 



Pleurocera intensum Anth. Beauchamp, Onondaga List. 

 1886. p.6 



