original description
Pilsbry, H. A. (1927). The structure and affinities of <i>Humboldtiana</i> and related helicid genera of Mexico and Texas. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 79: 165-192, plates 11-14.
page(s): 184, pl. 12, fig. 12 [details]
basis of record
InvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project. [details]
From editor or global species database