Brown, D.S. 1978. Freshwater molluscs. [in] M.J.A. Werger & A.C. Van Bruggen (eds.), Biogeography and Ecology of Southern Africa: 1153-1180. Available electronically.
‘Lea’ of Authors.
Servain, 1890. Bull. Soc. Malac. France 7: 303.
Brown, 1978. Biogeogr. Ecol. S. Africa: 1173.
(error for Spatha alata Lea, 1864)