Monogenean parasite species descriptions from Labeo spp. hosts in the Vaal Dam, South Africa

Dionne Crafford, Wilmien Luus-Powell, Annemarié Avenant-Oldewage

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11 Citations (Scopus)


Specimens of Labeo capensis (n = 13) and Labeo umbratus (n = 26) from the Vaal Dam (South Africa) were collected and examined for gill and skin monogenean parasites. Three new Dactylogyrus and one new Dogielius species are described. Dactylogyrus iwani n.sp. (longer inner root on anchor and predominates onL. capensis) and D. larindae n.sp. (shorter inner root on anchor and predominates on L. umbratus) show similarities in male copulatory organ (MCO) and anchor structure with representatives of the D. pseudanchoratus group. Dactylogyrus nicolettae n.sp. differs completely with regard to anchor morphology (stout with a curved inner root and reduced outer root), yet MCO morphology (curved penis and simple accessory piece structure of similar shape and size) are similar in all three species described. Dogielius intorquens n.sp. was collected from both hosts. Two forms, corresponding to host species and differing in anchor and MCO size but not shape, are described. This brings the number of Dactylogyrus species described from African Labeo spp. to 29, with D. intorquens n.sp. constituting the 16th Dogielius species from African Labeo spp. hosts.

Original languageEnglish
Pages (from-to)216-228
Number of pages13
JournalAfrican Zoology
Issue number2
Publication statusPublished - Oct 2012


  • Dactylogyrus
  • Dogielius
  • aquaculture
  • cyprinids
  • fisheries management
  • new species

ASJC Scopus subject areas

  • Animal Science and Zoology


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