Herbert D.G. (1987) Taxonomic studies on the Emarginulinae (Mollusca: Gastropoda: Fissurellidae) of southern Africa and Mozambique. Hemitoma, Clypidina, Tugali, Scutus, Zeidora and two species of Emarginula. South African Journal of Zoology 22(1): 1-13.
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Herbert, D. G.
1987
Taxonomic studies on the Emarginulinae (Mollusca: Gastropoda: Fissurellidae) of southern Africa and Mozambique. <i>Hemitoma</i>, <i>Clypidina</i>, <i>Tugali</i>, <i>Scutus</i>, <i>Zeidora</i> and two species of <i>Emarginula</i