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By: Plug, I - Bollong, Charles. - Hart, T J G - Sampson, C. Garth (Clavil Garth),Type: ArticleIn: Annals of the South African Museum. Annale van die Suid-Afrikaanse MuseumVolume: 104Series:Issue:Date: 1994Page Range: 31--48Publication Info: Cape Town, South African Museum, 1898-2004Subjects: