Melvill, J. C. & Ponsonby, J. H. (1892). Descriptions of seventeen new terrestrial mollusks from South or Central Africa, in the collection of EDGAR L. LAYARD, Esq. The Annals and Magazine of Natural History. (6) 9 (49): 87-94, pl. 4-6. London. [1 January].
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Melvill, J. C. & Ponsonby, J. H.
1892
Descriptions of seventeen new terrestrial mollusks from South or Central Africa, in the collection of EDGAR L. LAYARD, Esq