Genus Potamilus
Class Bivalvia
: Subclass Paleoheterodonta
: Genus Potamilus
Potamilus ohiensis (Pink Papershell)
The pink papershell mussel has a thin, shiny, tan, olive, or dark brown shell, a large wing behind the umbo, and a flattened umbo. It grows to seven inches in length. This species lives in the silt, mud, or sand in medium to large rivers. It occurs in Illinois in all but the northeast corner.
Conservation status: widespread and common locally
Taxonomy: Order Unionoida; Superfamily Unionoidea; Family Unionidae, Subfamily Lampsilinae
Collection of the Illinois State Museum, photograph by Karen Little
ISM Accession #: 676430
Class Bivalvia
: Subclass Paleoheterodonta
: Genus Potamilus
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