MolluscaBase name details
original description
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]
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): 23, fig. 23, fig. 4; note: Figure of Holotype [details]
additional source
InvertEBase. (2015). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase project (invertebase.org). [details]