original description
(of Ennea gouldi L. Pfeiffer, 1856) Pfeiffer, L. (1855-1856). Versuch einer Anordnung der Heliceen nach natürlichen Gruppen. <em>Malakozoologische Blätter.</em> 2(3): 112 [≥ September 1855]; 2(4): 113–144 [December 1855]; 2(5) (“1855”): 145–185 [January 1856]., available online at https://www.biodiversitylibrary.org/page/15864853
page(s): 174 [details]
additional source
Herbert, D. & Kilburn, D. (2004). Field guide to the land snails and slugs of eastern South Africa. Pietermaritzburg: Natal Museum. [v] + 336 pp.
page(s): 192 [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): 58 [details] Available for editors [request]
From editor or global species database