Distribution of Pyganodon grandis (Giant Floater) specimens in the ISM Collections |
Pyganodon grandis (Giant Floater) Records for Jackson County, Illinois- Catalog Number 673793
- Collector: Parmalee
Date: 1955
Drainage/Water body: Big Kincaid - Catalog Number 673836
- Collector: Parmalee
Date: 1955
Drainage/Water body: Big Muddy
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