MolluscaBase name details
original description
Dall, W. H. & Bartsch, P. (1909). A monograph of West American pyramidellid mollusks. <em>Bulletin of the United States National Museum.</em> 68 (30): 1-258., available online at http://www.biodiversitylibrary.org/item/32384
page(s): 148, pl. 15 figs 4-4a [details]