Fresh Water Mussel Image Gallery -- Illinois State Museum

Pyganodon grandis (Giant Floater)
The interior of the giant floater mussel shell has nacre that is silvery white (as seen in this specimen), cream, pink, salmon, or copper. The valves are without teeth. The beak cavity is wide and shallow.

Collection of the Illinois State Museum
ISM Accession #: 673857

<b><i>Pyganodon grandis </i>(Giant Floater)</b>

Class Bivalvia : Subclass Paleoheterodonta : Genus Pyganodon

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