MolluscaBase taxon details
original description
(of Zingis thermarum Melvill & Ponsonby, 1909) Melvill, J. C. & Ponsonby, J. H. (1909). Descriptions of nine species of Ennea and five Helicoids, all from South Africa. <em>The Annals and Magazine of Natural History.</em> (8) 4 (24): 485-492, pl. 8. London. [1 December]., available online at https://www.biodiversitylibrary.org/page/22097866
page(s): 491, pl. 8, fig. 14 [details]
additional source
Bruggen, A. C. van. (1967). Miscellaneous notes on Southern African Gastropoda Euthyneura (Mollusca). <em>Zoologische Verhandelingen.</em> 91: 1-34, 1 plate. Leiden., available online at https://repository.naturalis.nl/pub/317698
page(s): 11, figs 5-8 [details]