MOLLUSCA OF NEW YORK QI 



Margaritana undulata Say. Beauchamp, Onondaga List. 1886. 



p. 8. (Erie canal) 

 Alasmi d on ta un dul a ta Say. Simpson, Nat. Mus. Proc. 1900. 



22:667 



Alasmidonta calceola Lea 

 Margaritana deltoidea Lea. Walton, Rochester Acad. Sci. 



Proc. 1892. 2:17. (Erie canal) 

 Alasmidonta calceola Lea. Simpson, Nat. Mus. Proc. 1900. 



22:668 

 Alasmidonta calceola Lea. Letson, N. Y. State Mus. Bui. 45. 



1901. p. 250. (Goat island. Post-Pliocene) 



Alasmidonta heterodon Lea 



Unio heterodon Lea. Lewis, Buf. Soc. Nat. Sci. Bui. 2. 1874. 



p. 141 

 Alasmidonta heterodon Lea. Simpson, Nat. Mus. Proc. 1900. 



22:669 



Alasmidonta marginata Say 

 Alasmodon marginata Say. DeKay, Nat. Hist. N. Y. 1843. 



pi 9 6 

 Alasmodon corrugata DeKay. DeKay, Nat. Hist. N. Y. 



1843. p.igS 



Margaritana marginata Say, Jay, Cat. 1852. p. 69 

 M ar gari t ana m a rgina ta Say. Aldrich, Troy List. 1867. p.2. 



(Northern canal) 

 Margaritana marginata Say. Lewis, Buf. Soc. Nat. Sci. Bui. 2. 



1874. p.i 4 i 

 Margaritana marginata Say. Beauchamp, Onondaga List. 



1886. p.7 

 Margaritana marginata Say. Walton, Rochester Acad. Sci. 



Proc. 1892. 2:17 (Erie canal) 

 Alasmidonta marginata Say. Simpson, Nat Mus. Proc. 1900. 



22:670 



Alasmidonta truncata B. H. Wright 

 Alasmidonta truncata Wright. Simpson, Nat. Mus. Proc. 1900. 



22:671 



Genus HEMILASTENA Agassiz 



Hemilastena ambigua Say 



Margaritana hildrethiana Lea. Lewis, Buf. Soc. Nat. Sci. 



Bui. 2. 1874. p. 141. (Buffalo creek) 

 Hemilastena ambigua Say. Simpson, Nat. Mus. Proc. 1900. 



22:673 



