original description(ofHelix rhynchostoma L. Pfeiffer, 1861)Pfeiffer, L. (1861). Descriptions of forty-seven new species of land-shells, from the collection of H. Cuming, Esq. <em>Proceedings of the Zoological Society of London.</em> 29(2): 20–29, pls 2–3. London [30 May]., available online athttps://biodiversitylibrary.org/page/28672456 page(s): 21, plate 2, fig. 6. [details]