MolluscaBase name details
original description
Sowerby, G. B. II. (1873-1874). Monograph of the genus <i>Physa</i>. In: <i>Conchologia iconica, or illustrations of the shells of molluscous animals</i>, vol. 19, pls 1-12 and unpaginated text. L. Reeve, London. [publication dates: pls. 2-7, Feb. 1873; 8-10, Apr. 1873; 1, 11, 12, Nov. 1874]. , available online at https://www.biodiversitylibrary.org/page/8218229
page(s): species 63, pl. 8, fig. 63 [details]
basis of record
InvertEBase. (2018). Authority files of U.S. and Canadian land and freshwater mollusks developed for the InvertEBase (InvertEBase.org) project. [details]
additional source
Petit, R. E. (2009). George Brettingham Sowerby, I, II & III: their conchological publications and molluscan taxa. <em>Zootaxa.</em> 2189: 1–218., available online at http://www.mapress.com/zootaxa/2009/f/z02189p218f.pdf [details]