Melvill, J. C. & Ponsonby, J. H. (1893). Descriptions of twenty new species of terrestrial and fluviatile Mollusca from South Africa. Annals and Magazine of Natural History, Series. 6, 12: 103–112.
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Melvill, J. C. & Ponsonby, J. H.
1893
Descriptions of twenty new species of terrestrial and fluviatile Mollusca from South Africa.
Annals and Magazine of Natural History, Series. 6, 12: 103–112.