This is a demonstration of the ISM freshwater mussel image gallery.
Class Bivalvia : Subclass Paleoheterodonta : Genus Tritogonia
Tritogonia verrucosa (Pistolgrip)
The interior of the pistolgrip mussel shell has white nacre that is iridescent posteriorly. The pseudocardinal teeth are large and serrated. The lateral teeth are long and straight with striations. The beak cavity is deep.
Collection of the Illinois State Museum, photograph by Robert Warren
ISM Accession #: 678942
Class Bivalvia : Subclass Paleoheterodonta : Genus Tritogonia
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