original description
(of Unio irroratus I. Lea, 1827) Lea I. (1827). Description of six new species of the genus <i>Unio</i>, embracing the anatomy of the oviduct of one of them, together with some anatomical observations on the genus. <em>Transactions of the American Philosophical Society.</em> new ser., 3: 259-273, pls 3-6., available online at http://biodiversitylibrary.org/page/4487761
page(s): 269, pl. 5, fig. 5 [details]
original description
(of Obovaria stegaria Rafinesque, 1820) Rafinesque C.S. (1820). Monographie des coquilles bivalves et fluviatiles de la Rivière Ohio, contenant douze genres et soixante-huit espéces. <em>Annales Générales des Sciences Physiques.</em> 5(5): 287-322, pls 80-82., available online at http://gallica.bnf.fr/ark:/12148/bpt6k991081/f2.image
page(s): 312, pl. 82, figs. 4-5 [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]
From editor or global species database
Type locality USA, the Ohio River [details]