original descriptionPilsbry, H. A. (1935). Western and southwestern Amnicolidae and a new <i>Humboldtiana</i>. <em>The Nautilus.</em> 48(3):91-94., available online athttps://www.biodiversitylibrary.org/page/8520928 page(s): 93, fig. 2 [details]
Present Inaccurate Introduced: alien Containing type locality