MolluscaBase taxon details
original description
(of Unio eximius I. Lea, 1856) Lea I. (1856). Descriptions of twenty-five new species of exotic uniones. <em>Proceedings of the Academy of Natural Sciences of Philadelphia.</em> 8(2): 92-95 [after 29 April; before 18 June]., available online at http://biodiversitylibrary.org/page/1935146
page(s): 93 [details]
original description
(of Unio semiquadrata G. B. Sowerby II, 1866) Reeve, L. A. & Sowerby, G. B. II. (1864-1868). Monograph of the genus <i>Unio</i>. In: <i>Conchologia Iconica, or illustrations of the shells of molluscous animals</i>, vol. 16, pl 1- and unpaginated text. L. Reeve, London. Publication dates: pls 2-13 [Aug 1864], 14 [Sep 1864], 15-18 [Nov 1864], 19-20 [Jan 1865], 21-25 [Apr 1865], 26-30 [Jun 1865; pl. 30 as “1856”], 31-38 [Mar 1866], 39-42 [May 1866], 43-46 [Aug 1866], 47-54 [Nov 1866], 55-56 [Jun 1867], 57-60 [Sep 1867], 61-68 [Jan 1868], 69-76 [Mar 1868], 77-84 [Jul 1868], 85-93 [Sep 1868], 1, 94-96, Errata & Remarks [Oct 1868, by G. B. Sowerby II]. , available online at http://biodiversitylibrary.org/page/9133053
page(s): pl. 48, fig. 258 [details]