This is a demonstration of the ISM freshwater mussel image gallery.
Class Bivalvia : Subclass Paleoheterodonta : Genus Obliquaria
Obliquaria reflexa (Threehorn Wartyback)
The interior of the threehorn wartyback mussel shell has pearly white nacre. The shell is thick; the cavity can be shallow to deep. Pseudocardinal teeth are heavy and serrated (upper right of specimen). The lateral teeth are straight, short and serrated.
Collection of the Illinois State Museum, photograph by Robert Warren
ISM Accession #: 676893
Class Bivalvia : Subclass Paleoheterodonta : Genus Obliquaria
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