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): 147-148, pl. 20, fig. 14 [details]
From editor or global species database
Type locality off Rio de la Plata, in 11.5 fathoms [details]