original description(ofUnio macnielii I. Lea, 1869)Lea, I. (1869). Descriptions of six new species of fresh water shells. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 21: 124-125 [after 15 June 1869, before 30 July 1869]., available online athttps://biodiversitylibrary.org/page/6588035 page(s): 124 [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 NJicaragua north to Mexico [details] Type locality Nicaragua, Rio Gigillillo, Corcuera [details]