Van der Bank, F. Herman and Kramer, Bernd (1996) Phylogenetic Relationships Between Eight African Species of Mormyriform Fish ('l'eleostei, Osteichthyes): Resolution of a Cryptic Species, and Reinstatement of Cyphomyrus Myers, 1960. Biochemical Systematics and Ecology 24 (4), pp. 275-290.
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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.
|Institutions:||Biology, Preclinical Medicine > Institut für Zoologie > Verhaltensbiologie und Verhaltensphysiologie (Prof. Dr. Bernd Kramer)|
|Keywords:||Mormyridae; Gymnarchidae; elephantfish; allozyme; isoryme; electric organ discharge; phylogeny|
|Subjects:||500 Science > 570 Life sciences|
500 Science > 590 Zoological sciences
|Refereed:||Yes, this version has been refereed|
|Created at the University of Regensburg:||Unknown|
|Deposited On:||30 Aug 2007|
|Last Modified:||20 Jul 2011 21:06|