original description
Marshall, W. B. & Bowles, E. O. (1932). New fossil fresh-water mollusks from Ecuador. <em>Proceedings of the United States National Museum.</em> 82(2946): 1-7., available online at https://www.biodiversitylibrary.org/page/7608993
page(s): 4, pl. 1, figs 4-5 [details]
From editor or global species database
Type locality Biblian, Province of Canar, Ecuador [details]