MolluscaBase name details
original description
Sykes, E. R. (1909). The land and freshwater Mollusca of the Seychelles Archipelago. <em>Transactions of the Linnean Society of London (Zoology).</em> Ser. 2, 13: 57-64., available online at https://www.biodiversitylibrary.org/page/16398966
page(s): 59, fig. 1 [details]