MolluscaBase taxon details
original description
(of Helix (Trochozonites) dioryx Melvill & Ponsonby, 1892) Melvill, J. C. & Ponsonby, J. H. (1892). Descriptions of seventeen new terrestrial mollusks from South or Central Africa, in the collection of EDGAR L. LAYARD, Esq. <em>The Annals and Magazine of Natural History.</em> (6) 9 (49): 87-94, pl. 4-6. London. [1 January]., available online at https://www.biodiversitylibrary.org/page/15617730
page(s): 89, pl. 5, fig. 2. [details]
additional source
Connolly, M. (1939). A monographic survey of South African non-marine Mollusca. <em>Annals of the South African Museum.</em> 33: 1-660.
page(s): 161 [details] Available for editors [request]