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Trematochromis schreyeni , a junior synonym of ‘Ctenochromis’ benthicola( )(Perciformes: Cichlidae) from Lake Tanganyika

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Abstract:

A detailed morphological comparison of Trematochromis schreyeni only known from its holotype, collected at the north‐western end of Lake Tanganyika, and ‘Ctenochromisbenthicola described from the same region, and some additional material led to the conclusion that the two species were conspecifics. Consequently, T. schreyeni is considered to be a junior synonym of ‘C.’benthicola, an endemic species to the lake. A redescription of ‘C.’benthicola is also given. A statistical test comparing a single specimen and several specimens is difficult to carry out, because no variation is known in T. schreyeni. The present study, therefore, calculated Mahalanobis’ distance between the holotype of T. schreyeni and specimens of ‘C.’benthicola, and applied the χ2 test.

Keywords: Mahalanobis’ generalized distance; morphology; redescription; taxonomy

Document Type: Regular Paper

DOI: http://dx.doi.org/10.1111/j.0022-1112.2006.00969.x

Affiliations: 1: Laboratory of Animal Ecology, Department of Zoology, Graduate School of Science, Kyoto University, Kitashirakawa-Oiwakecho, Sakyo, Kyoto 606-8502, Japan, 2: Vertebrate Section, Africa Museum, Leuvensesteenweg 13, B-3080 Tervuren, Belgium and 3: Laboratory of Marine Biodiversity, Graduate School of Fisheries Sciences, 3-1-1 Minato, Hakodate 041-8611, Japan

Publication date: March 1, 2006

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