MolluscaBase taxon details
original description
(of Unio nigellus I. Lea, 1852) Lea, I. (1852). Descriptions of new species of the family Unionidae. <em>Transactions of the American Philosophical Society.</em> (NS) 10(2): 253-294, plates 12-29 [1 June 1852, teste Scudder (1885: 57)]., available online at http://biodiversitylibrary.org/page/4529783
page(s): 283, pl. 24, fig. 42 [details]
original description
(of Unio denigratus I. Lea, 1857) Lea, I. (1857). Descriptions of twenty-seven new species of uniones from Georgia. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 9: 169-172 [after 30 June 1857, possibly published in 1858]., available online at http://biodiversitylibrary.org/page/6330435
page(s): 171 [details]
basis of record
Williams, J. D., Bogan, A. E. & Garner, J. T. (2008). Freshwater mussels of Alabama and the Mobile Basin in Georgia, Mississippi and Tennessee. <em>University of Alabama Press, Tuscaloosa.</em> 908 pp. [details]
additional source
InvertEBase. (2015). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase project (invertebase.org). [details]
additional source
Johnson, R. I. (1968). <i>Elliptio nigella</i>, overlooked unionid from Apalachicola River System. <em>The Nautilus.</em> 82(1): 22-24, figs. 1-6., available online at https://www.biodiversitylibrary.org/page/8517067
page(s): 22-24, fig. 2-6 [details]