24 NEW YORK STATE MUSEUM 



Paludina Integra Say. Aldrich, Troy List. 1867. p. 3 

 Paludina rufa Hald. Aldrich, Troy List. 1867. p. 3. (Mohawk 



basin) 

 Paludina decisa Say. Smith & Prime, An. Lye. N. V. 1870, 



9:392. (Jamaica L. I.) 

 Melantho decisus Say. Lewis, Buf. Soc. Nat. Sci. Bui. 2. 1874* 



P- T 37 

 Melantho integer Say. Lewis, Buf. Soc. Nat. Sci. Bui. 2. 1874. 



P-!37 

 Melantho rufus Hald. Lewis, Buf. Soc. Nat. Sci. Bui. 2. 1874. 



p. 137. (Buffalo) 



Melantho decisus Say. Beauchamp, Onondaga List. 1886. p. 5 

 Melantho rufus Hald. Beauchamp, Onondaga List. 1886. p. 5, 



(Baldwinsville) 

 Melantho decisa Say. Walton, Rochester Acad. Sci. Proc. 1892. 



2:5. (Erie canal) 

 Melantho rufa Hald. Walton, Rochester Acad. Sci. Proc. 1892. 



2:5. (Erie canal) 

 Melantho decisa var. obesa Lewis. Walton, Rochester Acad. 



Sci. Proc. 1892. 2:5. (Erie canal) 

 Melantho decisa var. genicula Conr. Walton, Rochester 



Acad. Sci. Proc. 1892. 2:5. (Erie canal) 

 Melantho decisa var. i n t e g r a Say. Walton, Rochester Acad. 



Sci. Proc. 1892. 2:5. (Erie canal) 

 Melantho decisa var. heterostropha Kirt. Walton, 



Rochester Acad. Sci. Proc. 1892. 2:5. (Erie canal) 

 Campeloma decisa Say. Letson, N. Y. State Mus. Bui. 45. 



1901. p.243. (Goat island. Post-Pliocene) 



Genus LIOPLAX Troschel 

 Lioplax subcarinata Say 



Lioplax subcarinatus Say. Beauchamp, Onondaga List. 1886. 

 p.5. (Erie canal) 



Order SCUTIBRANCHIATA 



Suborder PODOPTHALMA 



Family TROCHIDAE 



Genus MARGARITA Leach 



Margarita ornata DeKay 



Margarita ornata DeK. DeKay, Nat. Hist. N. Y. 1843. p.io; 



