Liltved W.R. (1989) Cowries and their relatives of southern Africa. A study of the southern African cypraeacean and velutinacean gastropod fauna. Seacomber Publications. 208 pp.
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Liltved, W. R.
1989
Cowries and their relatives of southern Africa. A study of the southern African cypraeacean and velutinacean gastropod fauna