22 



NEW YORK STATE MUSEUM 



Subfamily lithog lypi i i nae 

 Genus gillia Stimpson 

 Gillia altilis Lea 

 Gillia altilis Lea. Binney, Smith. Misc. Coll. 144. 1865. 7:74 

 Gillia altilis Lea. Lewis, Buf. Soc. Nat. Sci. Bui. 2. 1874. p.138 

 Gillia altilis Lea. Beauchamp, Onondaga List. 1886. p.5 

 Gillia altilis Lea. Walton, Rochester Acad. Sci. Proc. 1892 

 2:4. (Erie canal) 



Genus somatogyrus Gill 

 Somatogyrus isogonus Say 



Pal u din a isogona Say. DeKay, Nat. Hist. N. Y. 1843. p.85. 



(Western New York) 

 Somatogyrus subglobosus Say. Lewis, Buf. Soc. Nat. Sci. 



Bui. 2. 1874. p.138 

 Somatogyrus isogonus Say. Beauchamp. Onondaga List. 



1886. p.5 



Somatogyrus integer Say 



Somatogyrus integer Say. Aldrich, Troy List. 1867. p. 4. 

 (Mohawk river) 



Subfamily pomatiopsinae 

 Genus pomatiopsis Tryon 

 Pomatiopsis lapidaria Say 

 Pomatiopsis lapidaria Say. Binney, Smith. Misc. Coll. 144. 

 1865. 7:93 



Pomatiopsis lapidaria Say. Letson, N. Y. State Mus. Bui. 45. 

 1901. p. 242. (Foster's flats. Post-Pliocene) 



Family valv atidae: 



Genus valvata Miiller 

 Valvata tricarinata Say 



Valvata tricarinata Say. DeKay, Nat. Hist. N. Y. 1843. P-u8 

 Valvata unicarinata DeK. DeKay, Nat. Hist. N. Y. 1843. 



p. 1 18. (Lake Champlain) 

 Valvata unicarinata DeK. Jay, Cat. 1852. p. 278 

 Valvata carinata Say. Jay, Cat. 1852. p. 277 

 Valvata tricarinata Say. Jay, Cat. 1852. p.278 

 Valvata tricarinata Say. Binney, Smith. Misc. Coll. 144. 



1865. p. 9. (Herkimer county) 

 Valvata tricarinata Say. Aldrich, Troy List. 1867. p. 3 

 Valvata tricarinata Say. Lewis, Buf. Soc. Nat. Sci. Bui. 2. 



1874. p. 137. (Little Lakes) 



