76 



*EW YORK STATE MUSEUM 



Ontario. 



Ottawa Latchford. 



Occurs in the Eastern and St. Lawrence drainage systems. 



Unio ligamentous, Lamarck. 



New York. 



Cross lake, Canandaigua county Beauchamp. 



Olean Pickett coll. 



Pennsylvania. 



Allegheny river, Warren county Beecher. 



Ohio. 



Ohio river, Cincinnati Beecher. 



Ohio river system Sterki. 



Michigan. 



Grand river, Kent county Walker. 



Raisin river, Monroe county Walker. 



Indiana. 



White river . . Walker. 



Illinois. 



Rock river, Rockford , Beecher. 



Several localities Hinkley. 



Wisconsin. 



Marsh. 



Minnesota. 



... Marsh. 



Iowa. 



Des Moines river, Boone , Beecher. 



Kansas. 



Cottonwood river, Emporia Quintard. 



Nebraska. 



Marsh. 



Missouri. 



Marsh. 



Tennessee. 



Marsh. 



Alabama. 



Marsh. 



Arkansas. 



Marsh. 



Occurs in the St. Lawrence and Mississippi drainage systems. 

 Reported from both sy stems in New York. 



