Geographic variation in Parauchenoglanis ngamensis (Boulenger 1911), (Siluriformes: Auchenoglanididae).

Michael E. Retzer

Research output: Contribution to journalArticlepeer-review

Abstract

The catfish, Parauchenoglanis ngamensis (Auchenoglanididae), is distributed in the Kasai and upper Zambezi-Okavango basins in southern Africa. The Kasai Basin population can be distinguished from the upper Zambezi-Okavango basins population by a less robust humeral process of the cleithrum, a longer external mandibular barbel, and less pigmentation on the body and fins. A population at Lake Calundo, appears to represent a portion of a cline within the species or a hybrid zone between two forms in the Kasai and upper Zambezi-Okavango basins.
Original languageEnglish (US)
Pages (from-to)45--50
JournalProceedings of the Academy of Natural Sciences of Philadelphia
Volume157
Issue number1
StatePublished - 2008

Keywords

  • INHS

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