Genus Dreissena
Class Bivalvia
: Subclass Heterodonta
: Genus Dreissena
Dreissena polymorpha (Zebra mussel)
The interior of the zebra mussel shell has no lateral teeth. There is a small septum (shelf) at the front end that forms a somewhat deep beak cavity. The nacre is white and semi-polished.
Collection of the Illinois State Museum, photograph by Robert Warren
ISM Accession #: none
Class Bivalvia
: Subclass Heterodonta
: Genus Dreissena
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