original description
Da Costa, S. I. (1906). Descriptions of new species of <i>Drymaeus</i>, <i>Amphicyclotus</i>, and <i>Neocyclotus</i> from South and Central America. <em>Proceedings of the Malacological Society of London.</em> 7: 7-10, pl. 1., available online at https://www.biodiversitylibrary.org/page/15797418
page(s): 8, pl. 1, fig. 4 [details]
basis of record
Simone, L. R. L. (2006). <i>Land and Freshwater Molluscs of Brazil</i>. Editora Grafíca Bernardi, FAPESP. São Paulo, 390 pp.
page(s): 135, Fig. 440 [details]
From editor or global species database
Type locality "Matto Grosso, Brazil" [details]