original description
(of Ferrissia lacustris B. Walker, 1924) Walker, B. (1924). The Ancylidae of South Africa. Privately published. Pp. 1–82, 2 pls. Dated 1923, but published 1924 according to Brown (1994: 299).
page(s): 71 [details]
basis of record
Brown D. S. (1994). <i>Freshwater snails of Africa and their medical importance</i>, revised 2nd edition. London: Taylor & Francis. pp. i-x, 1-607.
page(s): 184 [details] Available for editors [request]
From editor or global species database
Type locality South Africa, E Transvaal, Lake Chrissie [details]