original description
(of Cyclas triangularius Say, 1829) Say T. (1829). Descriptions of some new terrestrial and fluviatile shells of North America. (cont.). <em>The Disseminator of Useful Knowledge; Containing Hints to the Youth of the U. States, from the School of Industry.</em> 2(19): 291-293 [23 September 1829].
page(s): 356 [details]
basis of record
Graf, D.; Cummings, K. (2019). Musselp database: The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves). , available online at http://mussel-project.uwsp.edu/ [details]
From editor or global species database
Distribution Mexico [details]