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Type: Articles
Published: 2006-02-10
Page range: 45–56
Abstract views: 48
PDF downloaded: 2

Synodontis acanthoperca, a new species from the Ogôoué River system, Gabon with comments on spiny ornamentation and sexual dimorphism in mochokid catfishes (Siluriformes: Mochokidae)

Cornell University Museum of Vertebrates, 159 Sapsucker Woods Road, Ithaca, NY 14850-1923, USA
Cornell University Museum of Vertebrates, 159 Sapsucker Woods Road, Ithaca, NY 14850-1923, USA
Pisces Siluriformes Mochokidae Synodontis new species Africa Gabon Ogôoué River spiny ornamentation sexual dimorphism

Abstract

Synodontis acanthoperca, a new species of mochokid catfish, is described from rapids within the Ogôoué River system of Gabon. This relatively small species (<50 mm SL) is distinguished from all congeners by a distinctive pigmentation pattern that includes a pair of dark patches on the caudal fin and by the presence of hypertrophied opercular spines in sexually mature males.

References

  1. Boulenger, G.A. (1898) Description of a new siluroid fish from West Africa. The Annals and Magazine of Natural History Series, including Zoology, Botany, and Geology, Seventh Series, 2, 415.

    Boulenger, G.A. (1899) Matériaux pour la faune du Congo. Poissons nouveaux du Congo. Troisième Partie. Silures, Acanthoptérygiens, Mastacembles, Plectognathes. Annales du Musée du Congo, Zoologie Série, 1, 39–58.

    Boulenger, G.A. (1901) Les Poissons du Bassin du Congo. Publication de l'État Indépendant du Congo, Brussels, 532 pp.

    Boulenger, G.A. (1907) Descriptions of three new freshwater fishes discovered by Mr. G.L. Bates in South Cameroon. The Annals and Magazine of Natural History Series, including Zoology, Botany, and Geology, Seventh Series, 20, 50–52.

    Boulenger, G.A. (1911) Catalogue of the fresh-water fishes of Africa in the British Museum (Natural History). British Museum (Natural History), London, 2, 529 pp.

    Cuvier, G. (1816) Le Règne Animal distribué d'après son organisation pour servir de base à l'histoire naturelle des animaux et d'introduction à l'anatomie comparée. Les reptiles, les poissons, les mollusques et les annélides. Edition 1. Règne Animal, 2, 532 pp.

    Geoffroy Saint-Hilaire, E. (1809) Poissons du Nil, de la Mer Rouge et de la Méditerranée. In: Description de l'Egypte, vol. 1, part 1, Imprimerie impériale, Paris, pp. 1–52.

    Günther, A. (1864) Catalogue of the Physostomi, containing the families Siluridae, Characinidae, Haplochitonidae, Sternoptychidae, Scopelidae, Stomiatidae in the collection of the British Museum, British Museum (Natural History), London, 5, 455 pp.

    Günther, A. (1865) A contribution to the ichthyology of West Africa. The Annals and Magazine of Natural History Series, including Zoology, Botany, and Geology, Third Series, 15, 452–453.

    Leviton, A.E., Gibbs, R.H., Jr., Heal, E. & Dawson, C.E. (1985) Standards in herpetology and ichthyology: Part I. Standard symbolic codes for institutional resource collections in herpetology and ichthyology. Copeia, 1985, 802–832.

    Lönnberg, E. (1895) Notes on fishes collected in the Cameroons by Mr. Y. Sjöstedt. Öfversigt af Kongliga Vetenskaps-Akademiens Förhandlingar, 3, 179–195.

    Ng, H.H. (2004) The Microsynodontis (Teleostei: Siluriformes: Mochokidae) of the lower Guinea region, west central Africa, with the description of eight new species. Zootaxa. 531, 1–52.

    Nichols, J.T. & Griscom, L. (1917) Fresh-water fishes of the Congo basin obtained by the American Museum Congo expedition, 1909–1915. Bulletin of the American Museum of Natural History, 37, 653–756.

    Pappenheim, P. (1911) Zoologische Ergebnisse der Expedition des Herrn G. Tessmann nach Süd-Kamerun und Spanisch-Guinea. Fische. Mitteilungen aus dem Zoologischen Museum Berlin, 5, 505–528.

    Pellegrin, J. (1906) Collections recueillies par M. E. Haug dans l'Ogôoué. Poissons. Bulletin du Muséum National d'Histoire Naturelle, 12, 467–471.

    Pellegrin, J. (1924) Description d'un poisson nouveau du Gabon appartenant au genre Synodontis. Bulletin de la Societe Zoologique de France, 49, 320–322.

    Poll, M. (1971) Révision des Synodontis Africains (Famille Mochocidae). Annales Musée Royal de l’Afrique Centrale, Sciences Zoologiques, Huitième Série, 191, 1–497.

    Rapp Py-Daniel, L.H. & Cox Fernandes, C. (2005) Sexual dimorphism in Amazonian Siluriformes and Gymnotiformes (Ostariophyhsi). Acta Amazonica, 35, 97–110.

    Roberts, T.R. (1989) Systematic revision and description of new species of suckermouth catfishes (Chiloglanis, Mochokidae) from Cameroun. Proceedings of the California Academy of Sciences, Series 4, 46, 151–178.

    Rüppell, W.P.E.S. (1832) Fortsetzung der Beschreibung und Abbildung mehrerer neuer Fische, im Nil entdeckt. Fische Nil, Brönner, Frankfurt, 1–14.

    Sauvage, H.E. (1880) Etude sur la saune ichthyologique de l'Ogôoué. Nouvelles Archives du Muséum d'Histoire Naturelle de Paris, Deuxiéme Série, 3, 1–56.

    Sauvage, H.E. (1884) Note sur des poissons de Franceville, Haute-Ogôoué. Bulletin de la Société Zoologique, Paris, 9, 193–198.

    Schilthuis, L. (1891) On a collection of fishes from the Congo; with description of some new species. Tijdschrift der Nederlandsche Dierkundige Vereeniging, 3, 83–92.

    Seegers, L. (1996) The fishes of the Lake Rukwa drainage. Annales Musée Royal de l’Afrique Centrale. Sciences Zoologiques, 278, 1–407.

    Skelton, P.H. & White, P.N. (1990) Two new species of Synodontis (Pisces: Siluroidei: Mochokidae) from southern Africa. Ichthyological Explorations of Freshwaters, 1, 277–287.

    Taverne, L. & Aloulou-Triki, A. (1974) Étude anatomique, myologique et ostéologique du genre Synodontis Cuvier (Pisces: Siluriformes, Mochocidae). Annales Musée Royal de l’Afrique Centrale. Sciences Zoologiques, Huitième Série, 210, 1–69.

    Vaillant, L.L. (1895) Sur la dentition des Synodontis et diagnose d'espèces nouvelles. Bulletin de la Société Philomatique de Paris, Huitième Série, 7, 47–48.