MolluscaBase name details
original description
Pfeiffer, L. (1855 ["1854"]). Descriptions of fifty-seven new species of Helicea, from Mr. Cuming's collection. <em>Proceedings of the Zoological Society of London.</em> 22(277): 286–288; 22(278): 289–298 [8 May 1855]., available online at https://biodiversitylibrary.org/page/30747711
page(s): 294 [details]
additional source
Connolly, M. (1925). The non-marine Mollusca of Portuguese East Africa. Transactions of the Royal Society of South Africa, 12 (3): 105-220, pl. 4-8. Cape Town. [March].
page(s): 168 [details]