original descriptionHenderson, J. (1929). Some fossil fresh-water Mollusca from Washington and Oregon <em>The Nautilus</em>. 42(4): 119-123, available online athttps://www.biodiversitylibrary.org/page/8518906 page(s): 122 [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Type locality Bluff on south side of Park Lake, Grant County, Washington, United States; Pleistocene [details]
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