original description
(of Ennea perspicua Melvill & Ponsonby, 1893) Melvill, J. C. & Ponsonby, J. H. (1893). Descriptions of thirteen new species of terrestrial Mollusca from South Africa. <em>The Annals and Magazine of Natural History.</em> (6) 11 (61): 19-24, pl. 3. London. [1 January]., available online at https://www.biodiversitylibrary.org/page/27734267
page(s): 23, pl. 3, fig. 12 [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): 33 [details] Available for editors [request]
From editor or global species database
Type locality Middelburg [Mpumalanga, South Africa]. [details]