86 



NEW YORK STATE MUSEUM 



Pennsylvania. 



Allegheny river, Warren county Beecher. 



Ohio. 



Ohio river, Cincinnati Beecher. 



Ohio river system Sterki. 



Michigan. 



Huron river, Ann Arbor Beecher. 



Clinton river, Macomb county Walker. 



Black river, Cheboygan county Walker. 



Illinois. 



Marsh. 



Kansas. 



Neosho river, Burlington Quintard. 



Tennessee. 



Marsh. 



Arkansas. 



Marsh. 



Occurs in the St. Lawrence and Mississippi drainage systems. 

 Found in both systems in New York. 



Unio pressus, Lea. 



New York. 



Hudson river system 



Normanskill, Albany Beecher. 



Herkimer county Call. 



Erie canal, Onondaga county Beauchamp. 



West river, Yates county Sartwell. 



Mannsville, Jefferson county Fry. 



Genesee river, Allegany county Walker. 



Wellsville, Allegany county Beecher. 



Ontario. 



Ottawa Latchford. 



Wentworth county Leslie. 



Ohio. 



Ohio river system Sterki. 



Michigan. 



Huron river Beecher, 



Detroit river Walker. 



