GEOQBAPHTCAL DISTRIBUTION OF NEW TOBK UHIONID^E 



81 



Michigan. 



Huron river Beecher. 



Several localities Walker. 



Wisconsin. 



Geneva lake Pickett coll. 



Illinois. 



Rock river, Rockford Beecher. 



Iowa. 



Iowa City Hinkley. 



Kansas. 



Marsh. 



North Carolina. 

 Anthony. 



South Carolina. 



Abbeville Coll. Phila. Acad. 



Tennessee. 



Duck river Hinkley. 



Arkansas. 



, Marsh. 



Occurs in the eastern, St. Lawrence and Mississippi drainage 

 systems. Found in all three systems in New York. 



Unio multiradiatus, Lea. 



New York. 



Butternut creek, Otsego county State coll. 



Medina, Orleans county Pickett coll. 



Genesee river, Monroe county Walton . 



Pennsylvania. 



Allegheny river, Warren county Beecher. 



Ohio. 



Ohio river, Cincinnati Beecher. 



Ohio river system Sterki. 



Michigan . 



Huron river Beecher. 



Clinton river, Macomb county Walker. 



Indiana. 



Blue river , . Walker. 



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