basis of recordInvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project. [details]
additional sourceHenderson, J. (1928). Interesting additions to the fresh-water molluscan fauna of Oregon and Washington. <em>The Nautilus.</em> 41(4): 141., available online athttps://www.biodiversitylibrary.org/page/8519876[details]
additional sourceHenderson, J. (1931). Variation in <i>Carinifex newberryi</i> (Lea) and <i>Lymnaea utahensis</i> (Call). <em>The Nautilus.</em> 44(3): 77-79, pl. 6., available online athttps://www.biodiversitylibrary.org/page/8514935 page(s): 77, pl. 6, figs. 1-2 [details]
Present Inaccurate Introduced: alien Containing type locality