A critical revision of the churchill snoutfish, genus Petrocephalus Marcusen, 1854 (Actinopterygii: Teleostei: Mormyridae), from southern and eastern Africa, with the recognition of Petrocephalus tanensis, and the description of five new species

Kramer, Bernd and Bills, Roger and Skelton, Paul and Wink, Michael (2012) A critical revision of the churchill snoutfish, genus Petrocephalus Marcusen, 1854 (Actinopterygii: Teleostei: Mormyridae), from southern and eastern Africa, with the recognition of Petrocephalus tanensis, and the description of five new species. JOURNAL OF NATURAL HISTORY, 46 (35-36). pp. 2179-2258. ISSN 0022-2933, 1464-5262

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Abstract

We morphologically and genetically studied the southern African electric fish Petrocephalus catostoma, or churchill, and its six nominal species, five of which by synonymization (three valid subspecies). We reinstate the synonymized species, and recognize Petrocephalus tanensis (Whitehead and Greenwood, 1959) from the Tana River in Kenya, also using electric organ discharges. The Okavango delta (Botswana) is inhabited by Petrocephalus okavangensis sp. nov. and Petrocephalus magnitrunci sp. nov., and the Namibian Cunene River by Petrocephalus magnoculis sp. nov. We recognize Petrocephalus petersi sp. nov. for the Lower Zambezi River (Mozambique), and Petrocephalus longicapitis sp. nov. for the Upper Zambezi River (Namibia). The Lufubu River in Northern Zambia is inhabited by Petrocephalus longianalis sp. nov. For the southern churchill, Petrocephalus wesselsi Kramer and Van der Bank, 2000, we confirm intraspecific and interspecific differentiation. Sequence data from mitochondrial DNA confirm differentiation of two new western and two eastern species, forming mutual sister groups.

Item Type: Article
Uncontrolled Keywords: ELECTRIC ORGAN DISCHARGES; UPPER ZAMBEZI RIVER; GNATHONEMUS-PETERSII MORMYRIDAE; POLLIMYRUS-ISIDORI; OSTEOGLOSSOMORPHA MORMYRIDAE; WATER CONDUCTIVITY; SEX-DIFFERENCES; P-MARIANNE; WAVE-FORMS; FISH; systematics; morphometrics; electric organ discharges; molecular genetics; allopatric speciation
Subjects: 500 Science > 570 Life sciences
500 Science > 590 Zoological sciences
Divisions: Biology, Preclinical Medicine > Institut für Zoologie
Biology, Preclinical Medicine > Institut für Zoologie > Alumni or Retired > Verhaltensbiologie und Verhaltensphysiologie (Prof. Dr. Bernd Kramer)
Depositing User: Dr. Gernot Deinzer
Date Deposited: 22 May 2020 09:46
Last Modified: 22 May 2020 09:46
URI: https://pred.uni-regensburg.de/id/eprint/19441

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