MolluscaBase taxon details
original description
(of Ennea phragma 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): 95, pl. 6, fig. 3 [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): 75 [details] Available for editors [request]
identification resource
Brown, K. (2021). A guide to the hunter shells. Vol.1. The Streptaxoidea. The Gulellinae and Primigulellinae. ConchBooks, Germany.
page(s): 356. [details]