MolluscaBase name details
original description
Sowerby, G. B. III. (1915). Descriptions of five new species of Mollusca of the genera <i>Drillia, Marginella, Apicalia, Plesiotrochus</i>, and <i>Ringicula</i>, all from Ceylon; also notes on the genus <i>Plesiotrochus</i>. <em>Proceedings of the Malacological Society of London.</em> 11 (4): 213–216. (29 March)., available online at https://www.biodiversitylibrary.org/page/15715752
page(s): 213, text-fig. [details]
basis of record
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]