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HEW YORK STATE MUSEUM 



Unio spatulatus, Lea. 



New York. 



Near Buffalo Coleman T. Robinson. 



Ohio. 



Marsh. 



Indiana . 



Marsh. 



Michigan. 



Sheawassee river, Genesee county Walker. 



Swaitz creek, Gratiot county Walker. 



Grand river, Kent county Walker. 



Illinois . 



Winnebago county Hinkley. 



Wisconsin. 



s Marsh . 



Iowa. 



Coon river, Dallas county Walker . 



Occurs in the St. Lawrence and Mississippi drainage systems. 

 In New York it is found in the St. Lawrence system only. 



Unio tappanianus, Lea. 



New York. 



Hudson river system 



Erie canal, Mohawk Beecher . 



Canisteo river Walker. 



Chemung river Morgan . 



Chemung river Walker. 



Erie canal, Onondaga Beauchamp 



Canandaigua lake Wright. 



Genesee canal Walker. 



Pennsylvania . 



Philadelphia Coll. Phila. Acad. 



Juniata river Lea . 



Marsh. 



North Carolina? 

 Anthony. 



Confined to the Eastern drainage system. 



Unio triangularis, Barnes. 



New York . 



Niagara river Lea. 



Buffalo (Lea Record Book) Simpson 



Near Buffalo Coleman T. Robinson. 



