GEOGRAPHICAL DISTRIBUTION OF NEW YORK UNIONID.E 



95 



Margaritana undulata, Say. 



Maine. 



Winkley. 



Rhode Island. 



Carpenter. 



Massachusetts. 



Leominster Walker. 



Vermont. 



Connecticut river, Hartland Walker. 



New York. 



Norman's Kill, Albany Beecher. 



Hudson River system 



Herkimer county Beecher. 



Chenango river Beecher. 



Canisteo river, Steuben county Beecher. 



Conhocton river, Steuben county Beecher. 



Tioga river, Corning Wright. 



Onondaga county — rare Beauchamp. 



Pennsylvania. 



Philadelphia Coll. Phila. Acad. 



Maryland. 



Anthony. 



Virginia. 



Marsh. 



North Carolina. 



Near Raleigh Coll. Phila. Acad. 



Quebec. 



Cape Rouge Leslie. 



Ontario. 



O ttawa Latchf ord. 



Occurs in the Eastern and St. Lawrence drainage systems. 

 Occurs in both systems in New York. 



Unio undulatus, Barnes. 



New York. 



Erie canal, Onondaga county (one specimen) . . . Beauchamp . 



Pittsford, Monroe county. Crump. 



Tonawanda creek, Niagara county , Wright. 



Pennsylvania. 



Allegheny river, Warren county Beecher . 



Ohio. 



Ohio river system Sterki. 



