Open Access Open Access  Restricted Access Subscription or Fee Access

A new species of Pseudocrenilabrus (Perciformes: Cichlidae) from Lake Mweru in the Upper Congo River System

CYPRIAN KATONGO, OLE SEEHAUSEN, JOS SNOEKS

Abstract


Pseudocrenilabrus pyrrhocaudalis sp. nov. is described from Lake Mweru in the upper Congo River drainage, on the border of the Democratic Republic of Congo and Zambia. This species, which appears to be endemic to the lake, lives in sympatry with P. philander. Pseudocrenilabrus pyrrhocaudalis sp. nov. is distinguished from P. philander in nuptial males by the presence of an orange colour on the ventral part of the body and the proximal parts of the anal and caudal fins, a broad band of bright white on the distal edge of anal and caudal fins, a uniform grey head and dorsum, and a subtruncate caudal fin. In addition, P. pyrrhocaudalis has a shorter snout, a narrower head, a smaller interorbital distance, a smaller pre-anal distance, a more slender caudal peduncle and fewer scales around the caudal peduncle in both sexes.

 


Keywords


Pisces, Pseudocrenilabrus pyrrhocaudalis, description, south-eastern Africa

Full Text:

PDF (1MB)

References


Barel, C.D.N., Van Oijen, M.J.P., Witte, F. & Witte-Maas, E.L.M. (1977) An Introduction to the Taxonomy and Morphology of the Haplochromine Cichlidae from Lake Victoria. (Figures and text). Netherlands Journal of Zoology, 27, 333–389.
https://doi.org/10.1163/002829677X00199

Blackith, R.E. & Reyment, R.A. (1971) Multivariate Morphometrics. Academic Press, London & New York. IX + 412 + 2 pp. [412S + pp. 237–238]

Daget, J., Goose, J.P., Tuegels, G.G. & Thys van den Audenaerde, D.F.E. (1991) Check-list of the freshwater fishes of Africa. Vo. IV. ISBN MRAC ORSTOM, París, 740 pp.

Greenwood, P.H. (1979) Towards a phyletic classification of the ‘genus’ Haplochromis (Pisces, Cichlidae) and related taxa. Bulletin of the British Museum of Natural History, Part I, 35, 265–322.
https://doi.org/10.5962/bhl.part.20455

Greenwood, P.H. (1989) The taxonomic status and phylogenetic relationships of Pseudocrenilabrus Fowler (Teleostei, Cichlidae). Ichthyological bulletin of the JBL Smith Institute of Ichthyology, 54,1–16.

Egger, B., Klaefiger, Y., Indermaur, A, Koblmueller, S., Theis, A., Egger, S, Naef, T., Van Steenberge, M., Sturmbauer, C., Katongo, C. & Salzburger, W. (2014) Phylogeographic and phenotypic assessment of a basal haplochromine cichlid fish from Lake Chila, Zambia. Hydrobiologia, 748 (1), pp. 171–184.
https://doi.org/10.1007/s10750-014-1919-0

Hanssens, M., Snoeks, J. & Verheyen, E. (1999) A morphometric revision of the genus Ophthalmotilapia (Teleostei, Cichlidae) from Lake Tanganyika (East Africa). Zoological Journal of the Linnean Society 125, 487–512.
https://doi.org/10.1111/j.1096-3642.1999.tb00602.x

Katongo, C., Koblmüller, S., Duftner, N., Makasa, L. & Sturmbauer, C. (2005) Phylogeography and speciation in the Pseudocrenilabrus philander species complex in Zambian rivers. Hydrobiologia, 542, 221–233.
https://doi.org/10.1007/1-4020-4111-X_22

Koblmüller, S., Sefc, K.M. & Sturmbauer, C. (2008) The Lake Tanganyika cichlid species assemblage: recent advances in molecular phylogenetics. Hydrobiologia, 615, 5–20.
https://doi.org/10.1007/s10750-008-9552-4

Marcus, L.F. (1990) Traditional morphometrics, In: Rohlf, F.J. & Bookstein, F.L. (Eds.), Proceedings of the Michigan Morphometrics Workshop, Special Publication Number 2, Ann Arbor. MI: The University of Michigan Museum of Zoology, pp. 77–117.

Poll, M. (1986) Classification des Cichlidae du lac Tanganyika Tribus, genres et espèces, Acad´emie Royale de Belgique M´emoires de la Classe des Sciences, Series 2, 45, 1–163.

Quicke, D.L.J. (1993) Principles and Techniques of Contemporary Taxonomy. Blackie Academic and Professional, Chapman and Hall, 311 pp.
https://doi.org/10.1007/978-94-011-2134-7

Salzburger, W., Meyer, A., Baric, S., Verheyen, E. & Sturmbauer, C. (2002) Phylogeny of the Lake Tanganyika cichlid species flock and its relationships to the Central and East African haplochromine cichlid fish faunas, Systematic Biology, 51, 113–135.
https://doi.org/10.1080/106351502753475907

Salzburger, W., Mack, T., Verheyen, E. & Meyer, A. (2005) Out of Tanganyika: Genesis, explosive speciation, key- innovations and phylogeography of the haplochromine cichlid fishes, BMC Evolutionary Biology. Available from: http://www.biomedcentral.com/1471-2148/5/17 (accessed 3 April 2013)

Skelton, P.H. (1991) Pseudocrenilabrus, In: Daget, J., Gosse, J.P., Teugels, G.G. & van den Audenaerde, D.F.E.T. (Eds.), Check-list of freshwater fishes of Africa (CLOFFA), 4, pp. 394–398.

Skelton, P.H. (1994) Diversity and distribution of freshwater fishes in East and Southern Africa, Annals of the Museum of Central Africa, Zoology, 275, 95–131.

Skelton, P.H. (2001) A complete guide to the freshwater fishes of Southern Africa. Struik Publishers, Cape Town, 395 pp.

Snoeks J. (1991) The use of a standard colour guide and subtle morphological difference in Lake Kivu haplochromine taxonomy. Proceedings of the Fifth European Congress on Cichlid Biololgy. Antwerp, Belgium Edition. Vol. 262. In: Nelissen, M. (Eds.), Annals of the Museum of Central Africa, Zoology, 1991, pp.103–108.

Snoeks, J. (1994) The Haplochromines (Teleostei, Cichlidae) of Lake Kivu (East Africa): A Taxonomic Revision with notes on their Ecology, Annals of the Museum of Central Africa, Zoology, 270, 1–221.

Snoeks J. (2004) The non-cichlid fishes of the Lake Malawi/Nyasa/Niassa system. In: Snoeks, J. (Eds.), The cichlid diversity of Lake Malaŵi/Nyasa/Niassa: identification, distribution and taxonomy, Cichlid Press, El Paso, pp. 12–26.

Stelkens, R. & Seehausen, O. (2009) Phenotypic divergence but not genetic distance predicts assortative mating among species of a cichlid fish radiation. Journal of Evolutionary Biology, 22, 1679–1694.
https://doi.org/10.1111/j.1420-9101.2009.01777.x

Takahashi, T. & Koblmüller, S. (2011) The adaptive radiation of cichlid fish in Lake Tanganyika: a morphological perspective. International Journal of Evolutionary Biology, 2011 (Article ID 620754), 1–14. [PMCID: PMC3119568]
http://dx.doi.org/10.4061/2011/620754




DOI: http://dx.doi.org/10.11646/zootaxa.4237.1.10

Refbacks

  • There are currently no refbacks.


 
ISSN 1175-5326 (Print Edition) & ISSN 1175-5334 (Online Edition)
Published by Magnolia Press, Auckland, New Zealand