This is a demonstration of the ISM freshwater mussel image gallery.
Class Bivalvia : Subclass Paleoheterodonta : Genus Lampsilis
Lampsilis ovata (Pocketbook)
The interior of the pocketbook mussel shell has white nacre that is iridescent toward the posterior end (left side of image). The pseudocardinal teeth are thick and compressed. The lateral teeth are short and curved. The beak cavity is very deep.
Collection of the Illinois State Museum, photograph by Karen Little
ISM Accession #: 675651
Class Bivalvia : Subclass Paleoheterodonta : Genus Lampsilis
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