oa African Zoology - Description of Doropygus pyurus n, sp. (Copepoda, Notodelphyidae) from Pyura stolollifera (Echinodermata, Ascidiacea) in South Africa

Volume 29, Issue 3
  • ISSN : 1562-7020
  • E-ISSN: 2224-073X



The genus Doropygus has long been plagued by morphological and taxonomic confusion. Descriptions are often found to be inadequate and finer morphological variations result in laborious and unnecessary descriptionption of new species. Although the genus is known to be cosmopolitan in its distribution, only four species have been recorded from the coastal invertebrates of the African coast. Doropygus apicatus. D. depressus and D. humulis occur in the Dahlak Archipelago off the coast of Ethiopia and D. pulex has been recorded from the southern coast of South Africa. Recent samples in the latter locality yielded specimens which showed some resemblance to D. pulex, but differed to such an extent that descriptionption as a new species is warranted. Unfortunately the South African material reported previously is no longer in existence and the three-line descriptionption defies any comparative studies. Doropygus pyurus sp. n. differs from most of its congeners in the structure of the antennule and mouth parts, but most significantly from D. pulex by virtue of its unique leg armature and setation.

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