Melvill, J. C. & Ponsonby, J. H. (1909). Descriptions of nine species of Ennea and five Helicoids, all from South Africa. The Annals and Magazine of Natural History. (8) 4 (24): 485-492, pl. 8. London. [1 December].
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Melvill, J. C. & Ponsonby, J. H.
1909
Descriptions of nine species of Ennea and five Helicoids, all from South Africa