original description(ofUnio caldwellii I. Lea, 1858)Lea I. (1858). Description of four new fresh-water Molluscs, from the Isthmus of Darien and Honduras. <em>Proceedings of the Academy of the Natural Sciences of Philadelphia.</em> 10: 118., available online athttps://biodiversitylibrary.org/page/47535711 page(s): 118 [details]
original description(ofUnio averyi I. Lea, 1859)Lea, I. (1859). Description of a new species of <i>Unio</i> from the Isthmus of Darien. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 11: 281 [1 November 1859]., available online athttps://biodiversitylibrary.org/page/26310697 page(s): 281 [details]
basis of recordGraf, D.; Cummings, K. (2019). Musselp database: The Freshwater Mussels (Unionoida) of the World (and other less consequential bivalves). , available online athttp://mussel-project.uwsp.edu/[details]
Present Inaccurate Introduced: alien Containing type locality
From editor or global species database
Distribution Central America, Panama, perhaps north into Guatemala [details] Type locality Panama ("Isthmus of Darien") [details]