This is a demonstration of the ISM freshwater mussel image gallery.
Class Bivalvia : Subclass Paleoheterodonta : Genus Ligumia
Ligumia subrostrata (Pondmussel)
The interior of the pondmussel shell has white nacre that is very iridescent at the posterior end. The pseudocardinal teeth are very thin and compressed. The lateral teeth are long, thin, and straight. The beak cavity is shallow.
Collection of the Illinois State Museum, ,photograph by Karen Little
ISM Accession #: 676536
Class Bivalvia : Subclass Paleoheterodonta : Genus Ligumia
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