original description
Preston, H.B. (1912). Descriptions of new helicoid shells from Cape Colony. Proceedings of the Malacological Society of London, 10 (1): 16-18. London [8 March].
page(s): 17, textfig. [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): 245 [details] Available for editors [request]
From editor or global species database
Type locality 'Knysna Forest, Cape Colony' [W. Cape, South Africa]. [details]