Fotos: (1) The Academy of Natural Sciences, Philadelphia: LECTOTYPE ANSP 78180, University of Michigan – Steere Expedition, Brasil/Peru, 03.iv.1900
Fontes:
Descrição original: Pilsbry, 1901. Manual of Conchology (Ser. 2) 14 (53-55): 160, pl. 26, fig. 38
Simone, L. R. L. (2006). Land and Freshwater Molluscs of Brazil. Editora Gráfica Bernardi, FAPESP. São Paulo, 390 pp.
página(s): 144
Vernhout, J. H. (1914). The non-marine molluscs of Surinam. Notes from the Leyden Museum. 36: 1-46, pls. 1-2., disponível online emhttps://www.biodiversitylibrary.org/page/14021311
página(s): 13-14, 40, 42
H. B. Baker, 1963. Proceedings of the Academy of Natural Sciences of Philadelphia 115 (8): 231