original description
Pilsbry, H. A. (1896). New species of freshwater mollusks from South America. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 48: 561-565, pls. 26-27., available online at https://www.biodiversitylibrary.org/page/26368567
page(s): 562-563, pl. 26, fig. 9 [details]
source of synonymy
Simone, L. R. L. (2006). <i>Land and Freshwater Molluscs of Brazil</i>. Editora Grafíca Bernardi, FAPESP. São Paulo, 390 pp.
page(s): 295; note: Misspelled as "colombiensis". [details]
From editor or global species database
Type locality Uruguay, La Plata R. above Colonia [details]
From editor or global species database