MolluscaBase name details
original description
Clark, B. L. (1915). Fauna of the San Pablo Group of middle California. <em>University of California Publications, Bulletin of the Department of Geology.</em> 8(22): 385–572, pls 42-71., available online at https://www.biodiversitylibrary.org/page/43628020
page(s): 448-449, pl. 64, figs 3, 4 [details]