Abstract
A new species of catfish is described from Colombia, and provisionally assigned to the genus Cordylancistrus. The new species is most similar to C. perijae and C. nephelion from Venezuela. The description is based on ten specimens collected from tributaries of the Magdalena River which drain the eastern slope of the Cordillera Central and the western slope of Cordillera Oriental, in the Department of Tolima. The new species is the first Cordylancistrus described from the Magdalena River basin. With this discovery, the number of Cordylancistrus species in Colombia increases to three. The geographic distribution of the species suggest that Andean orogenesis played an important role in the diversification of the group.
References
Armbruster, J.W. (2004) Phylogenetic relationships of the suckermouth armored catfishes (Loricariidae) with emphasis on the Hypostominae and Ancistrinae. Zoological Journal of the Linnaean Society, 141 (1), 1–80.
https://doi.org/10.1111/j.1096-3642.2004.00109.xArmbruster, J.W. (2008) The genus Peckoltia with the description of two new species and a reanalysis of the phylogeny of the genera of the Hypostominae (Siluriformes: Loricariidae). Zootaxa, 1822, 1–76.
Ballen, G.A. (2011) A new species of Chaetostoma Tschudi (Siluriformes: Loricariidae) from Colombia with a definition of the C. anale species group. Papéis Avulsos de Zoologia, 51 (26), 383–398.
Boeseman, M. (1968) The genus Hypostomus Lacépède, 1803, and its Surinam representatives (Siluriformes, Loricariidae). Zoologische Verhandelingen, 99, 1–89.
Boulenger, G.A. (1898) Viaggio del Dr. Enrico Festa nell’Ecuador e regioni vicine. Poissons de l’ Equateur (première partie). Bollettino dei Musei di Zoologia ed Anatomia Comparata della R. Università di Torino, 13, 1–13.
Dahl, G. (1964) La ictiofauna del río San Jorge. In: Dahl, G., Medem, F. & Ramos Henao, A. (Eds.), El Bocachico, contribución al estudio de su biología y de su ambiente. Departamento de Pesca de la Corporación Autónoma Regional de los Valles del Magdalena y del Sinú, C.V.M. Talleres Gráficos Banco de la República de Colombia, Bogotá, pp. 1–144.
Eigenmann, C.H. (1912) Some results from an ichthyological reconnaissance of Colombia, South America. Part I. Indiana University Studies, 16 [sic no. 8], 1–27.
Fowler, H. (1943) A collection of fresh-water fishes from Colombia, obtained chiefly by Brother Nicéforo Maria. Proceedings of the Academy of Natural Sciences of Philadelphia, 95, 223–266.
Isbrücker, I.J.H. (1980) Classification and catalogue of the mailed Loricariidae (Pisces, Siluriformes). Verslagen en Technische Gegevens, Instituut voor Taxonomische Zoölogie, Universiteit van Amsterdam, 22, 1–181.
Lujan, N.K., Meza-Vargas, V. & Barriga-Salazar, R. (2015) Two new Chaetostoma Group (Loricariidae: Hypostominae) sister genera from opposite sides of the Andes mountains in Ecuador, with the description of one new species. Copeia, 103 (3), 651–663. https://doi.org/10.1643/CI-15-246
Lujan, N.K., Armbruster, J.W., Lovejoy, N. & López-Fernández, H. (2015a) Multilocus molecular phylogeny of the suckermouth armored catfishes (Siluriformes: Loricariidae) with a focus on subfamily Hypostominae. Molecular Phylogenetics and Evolution, 62, 269–288.
https://doi.org/10.1016/j.ympev.2014.08.020Lujan, N.K., Meza-Vargas, V., Astudillo-Clavijo, V., Barriga-Salazar, R. & López-Fernández, H. (2015b) A multilocus molecular phylogeny for Chaetostoma clade genera and species with a review of Chaetostoma (Siluriformes: Loricariidae) from the Central Andes. Copeia, 103 (3), 664–701.
https://doi.org/10.1643/CI-14-194Meek, S.E. & Hildebrand, S.F. (1916) The fishes of the freshwaters of Panama. Field Museum of Natural History, Publications, Zoological Series, 10 (15), 1–374, pls. 6–32.
Pellegrin, J. (1909) Mission géodésique de l’Équateur. Collections recueillies par M. le Dr. Rivet. Description de deux poissons nouveaux de la famille des Loricariidae. Bulletin du Muséum National d’Histoire Naturelle, Série 1, 15 (8), 517–519.
Pérez, A. & Provenzano R., F. (1996) Cordylancistrus perijae, a new species of armored catfish (Siluroidei, Loricariidae) from the Maracaibo Basin, Venezuela. Studies on Neotropical Fauna and Environment, 31 (1), 27–34.
https://doi.org/10.1076/snfe.31.1.27.13317Provenzano, F. & Milani, N. (2006) Cordylancistrus nephelion (Siluriformes, Loricariidae), a new and endangered species of armored suckermouth catfish from the Tuy River, north–central Venezuela. Zootaxa, 1116, 29–41.
Rapp Py-Daniel, L.H. (1991) Chaetostoma jegui, a new mailed catfish from the rio Uraricoera, Brazil (Osteichthys: Loricariidae). Ichthyological Exploration of Freshwaters, 2, 239–246.
Sabaj, M.H. (2016) Standard symbolic codes for institutional resource collections in herpetology and ichthyology: an Online Reference. Version 6.5 (16 August 2016). Electronically accessible. American Society of Ichthyologists and Herpetologists, Washington, DC. Available from: http://www.asih.org/ (accessed 4 July 2017)
Schultz, L.P. (1944) The catfishes of Venezuela, with descriptions of thirty-eight new forms. Proceedings of the United States National Museum, 94 (3172), 173–338, pls. 1–14.
Tan, M. & Armbruster, J.W. (2012) Cordylancistrus santarosensis (Siluriformes, Loricariidae), a new species with unique snout deplatation from the Río Santa Rosa, Ecuador. Zootaxa, 3243, 52–58.