MolluscaBase name details
original description
(of Unio umbrans I. Lea, 1857) Lea, I. (1857). Proposed […] change of the name of <i>Unio umbrosus</i> and <i>Unio Wheatleyi</i>, to <i>U. umbrans</i> and <i>U. Catawbensis</i>. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 9: 104 [after 28 April 1857; possibly published in 1858]., available online at http://biodiversitylibrary.org/page/6330368
page(s): 104 [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]