original descriptionFirby, J.R. (1966). New non-marine Mollusca from the Esmeralda Formation, Nevada <em>Proceedings of the California Academy of Sciences, fourth series</em>. 33(14): 453-480, available online athttp://www.biodiversitylibrary.org/page/26236670#page/481/mode/1up page(s): 464, figs 1, 5, 9 [details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Type locality Locality UCMP B-2051, Mineral County, Nevada, United States; Barstovian, middle Miocene [details]