MolluscaBase name details
original description
Henderson, J. B. (1920). A monograph of the east American scaphopod mollusks. <em>United States National Museum Bulletin.</em> 111(20): 1-177., available online at http://www.biodiversitylibrary.org/item/33255
page(s): 134-135, pl. 19, fig. 2 [details]