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  1. By: Tweddle, Denis - Anderson, M. Eric.
    Type: Article
    In: Smithiana Bulletin
    Volume: 8
    Date: 2008
    Page Range: 3--24
    Publication Info: Grahamstown, South Africa, South African Institute for Aquatic Biodiversity, c2002-
  2. By: Eccles, David H - Tweddle, Denis - Skelton, Paul H. (Paul Harvey)
    Type: Article
    In: Smithiana Bulletin
    Volume: 13
    Date: 2011-04-15
    Page Range: 3--28
    Publication Info: Grahamstown, South Africa, South African Institute for Aquatic Biodiversity, c2002-
  3. By: Bragança, Pedro H. N. - Van Zeeventer, Ryan - Bills, Ian - Tweddle, Denis - Chakona, Albert
    Type: Article
    In: ZooKeys
    Volume: 923
    Date: 2020
    Page Range: 91--113
    Publication Info: Pensoft Publishers 2020