Phylogenetic Relationships Between Eight African Species of Mormyriform Fish ('l'eleostei, Osteichthyes): Resolution of a Cryptic Species, and Reinstatement of Cyphomyrus Myers, 1960

DOI to cite this document:

10.5283/epub.2030 Copy

Van der Bank, F. Herman ; Kramer, Bernd

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Date of publication of this fulltext: 05 Aug 2009 13:35

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Details

Item type:	Article
Journal or Publication Title:	Biochemical Systematics and Ecology
Publisher:	Elsevier
Volume:	24
Number of Issue or Book Chapter:	4
Page Range:	pp. 275-290
Date:	June 1996
Institutions:	Biology, Preclinical Medicine > Institut für Zoologie > Alumni or Retired > Verhaltensbiologie und Verhaltensphysiologie (Prof. Dr. Bernd Kramer)
Identification Number:	Value Type 10.1016/0305-1978(96)00026-9 DOI
Keywords:	Mormyridae; Gymnarchidae; elephantfish; allozyme; isoryme; electric organ discharge; phylogeny
Dewey Decimal Classification:	500 Science > 570 Life sciences 500 Science > 590 Zoological sciences
Status:	Published
Refereed:	Yes, this version has been refereed
Created at the University of Regensburg:	Unknown
Item ID:	2030

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Abstract

Phylogenetic relationships between seven elephantfish species from five genera (Mormyridae) that are endemic to southern Africa, and the Nile knifefish of the sister family, Gymnarchidae, were determined using biochemical genetic data, behaviour (the waveforms of the electric organ discharge), morphology, and habitat and food preferences. The results confirmed the existence of an undescribed ...

Abstract

Phylogenetic relationships between seven elephantfish species from five genera (Mormyridae) that are endemic to southern Africa, and the Nile knifefish of the sister family, Gymnarchidae, were determined using biochemical genetic data, behaviour (the waveforms of the electric organ discharge), morphology, and habitat and food preferences. The results confirmed the existence of an undescribed species of Hippopotamyrus, and that H. ansorgii and H. discorhynchus are not congeners. These distinctions had been suggested by differences in electric organ discharge waveforms and are here substantiated by morphological and genetic data. We recommend the reinstatement of Cyphomyrus discorhynchus (Peters, 1852). Genetic distance (D, Nei, 1972) values suggest confamilial genera (D average of 1.09 for all species studied, and 0.715 for southern African species), with the exception of the sympatric and congeneric species: H. ansorgii and H. sp. (D=0.423). Phylogenies based on morphological and electrophoretic data are congruent.

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