MolluscaBase name details
original description
Sykes E. R. (1902). Notes on Tonkinese Clausiliae, with illustrations of some unfigured forms, and the description of a new species. <em>Proceedings of the Malacological Society of London.</em> 5: 189-194., available online at https://biodiversitylibrary.org/page/15168528
page(s): 194, plate 3, fig. 5 [details]