MolluscaBase taxon details
original description
(of Ennea vallaris Melvill & Ponsonby, 1907) Melvill, J. C. & Ponsonby, J. H. (1907). Descriptions of fifteen terrestrial Mollusca from South Africa. <em>The Annals and Magazine of Natural History.</em> (7) 19 (109): 94-101, pl. 6. London. [1 January]., available online at https://www.biodiversitylibrary.org/page/24254554
page(s): 96, pl. 6, fig. 5 [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): 208 [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): 67 [details] Available for editors [request]
additional source
Burnup, H.C. (1926). On some South African Gulellae, with descriptions of new species and varieties. Part 2. <em>Annals of the Natal Museum 5(3): 351–398.</em>
page(s): 382 [details]