Trichomycterus alterus (Marini, Nichols & La Monte, 1933) and T. corduvensis Weyenberg 1877 (Siluriformes: Trichomycteridae): new records from the High Andean Plateau

Luis Fernandez, Julieta Andreoli Bize


New records of two Trichomycterus species are herein added to the existing checklist of catfishes living at elevations above 3,000 m in the Andes of South America. Trichomycterus alterus and T. corduvensis are recorded at 3,430 m above sea level from the High Andean Plateau (or Puna) in a stream near Antofagasta de la Sierra, Provincia de Catamarca, Argentina. Morphometric and meristic data of examined specimens are included.


catfish; high altitude; Argentina; Catamarca; Central Andes; Puna

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Aramayo, A., S. Guzmán, F. Hongo, C. del Papa, C. Montero-López & M. Sudo. In press. A middle miocene (13.5-12Ma) deformational event constrained by volcanism along the puna-eastern cordillera border NW Argentina. Tectonophysics. doi: 10.1016/j.tecto.2017.02.018

Arratia, G., M.B. Peñafort & S. Menu-Marque. 1983. Peces de la región sureste de los Andes y sus probables relaciones biogeográficas actuales. Deserta 7: 48–107.

Arraya, M.M., M. Maldonado, F.M. Carvajal-Vallejos & L. Fernandez. 2009. Contribución al conocimiento de los peces del género Trichomycterus (Siluriformes: Trichomycteridae) en los Andes de Bolivia. Revista Boliviana de Ecología y Conservación Ambiental 26: 45–52.

Becker, T.P., L.L. Summa, M. Ducea & G.D. Karner 2015. Temporal growth of the Puna Plateau and its bearing on the post-Salta Rift system subsidence of the Andes foreland basin at 25°30ʹ S; pp. 407–433, in: P.G. DeCelles, M.N. Ducea, B. Carrapa & P.A. Kapp (eds.). Geodynamics of a cordilleran orogenic system: the Central Andes of Argentina and northern Chile. Geological Society of America Memoir 212. doi: 10.1130/2015.1212

Ducea, M.N., A.C. Seclaman, K.E. Murray, D. Jianu & L.M. Schoenbohm. 2013. Mantle-drip magmatism beneath the Altiplano-Puna plateau, central Andes. Geology 41(8): 915. doi: 10.1130/g34509.1

Fernandez, L. 2001. Nuevos registros de Trichomycterus Valenciennes e Ituglanis Costa y Bockmann (Teleostei: Siluriformes) en Argentina, Paraguay y Bolivia. Neotropica 47: 103–105.

Fernandez, L. 2005. Risk of extinction of a rare catfish of Andean groundwater and its priority for conservation. AMBIO 34(3): 269–270. doi: 10.1579/0044-7447-34.3.269

Fernandez, L. 2013. Diversidad y endemismos de peces de la Cordillera Argentina. Amenazas. Temas BGNoa 3(3): 77–84. oa09_alta.pdf

Fernandez, L. & S.A. Schaefer. 2003. Trichomycterus yuska, a new species from high elevvations of Argentina (Siluriformes: Trichomycteridae). Ichthyological Exploration Freshwaters 14(4): 353–360.

Fernandez, L. & R.P. Vari. 2002. A new species of Trichomycterus from the Andes with a redescription of T. alterus Marini et al. (Teleostei: Siluriformes: Trichomycteridae). Copeia 2002(3): 739–747. doi:

Fernandez, L. & R.P. Vari. 2012. New species of Trichomycterus (Teleostei: Siluriformes) from the Andean Cordillera of Argentina and the second record of the genus in thermal waters. Copeia 2012(4): 631–636. doi: 10.1643/CI-12-035

Fernandez, L., E.A. Sanabria & L.B. Quiroga. 2017. Description of Silvinichthys pedernalensis n. sp. (Teleostei, Siluriformes) from the Andean Cordillera of southern South America. Animal Biodiversity and Conservation 40(1): 41–49.

Fernandez, L., E.A. Sanabria, L.B. Quiroga & R.P. Vari. 2014. A new species of Silvinichthys (Siluriformes, Trichomycteridae) lacking pelvic fins from mid-elevation localities of the southern Andes, with comments on the genus. Journal Fish Biology 84(2): 372–382. doi: 10.1111/jfb.12291

Habit, E., J. González, J. Ortiz-Sandoval, A. Elgueta & C. Sobenes. 2015. Efectos de la invasion de salmónidos en ríos y lagos de Chile. Ecosistemas 24(1): 43–51. doi:

Karemer B., D. Adelmann, M. Alten, W. Schnurr, K. Erpenstein, E. Kiefer, P. van den Bogaard, & K. Görler. 1999. Incorporation of the Paleogene foreland into the Neogene Puna plateau: the Salar de Antofalla area, NW Argentina. Journal of South American Earth Sciences 12(2): 157–182. doi: 10.1016/S0895-9811(99)00012-7

Liotta, J. 2006. Distribución geográfica de los peces de aguas continentales de la República Argentina. La Plata: Probiota, Universidad Nacional de la Plata. 653 pp.

Ramos, V.A. 1999. Las provincias geológicas del territorio argentino. Instituto de Geología y Recursos Minerales, Geología Argentina, Anales 29(3): 41–96.

Reis R.E., J.S. Albert, F.D. Dario, M.M. Mincarone, P. Petry & L.A. Rocha. 2016. Fish biodiversity and conservation in South America. Journal of Fish Biology 89(1): 12–47. doi: 10.1111/jfb.13016

Risse, A., R.B. Trumbull, S.M. Kay, B. Coira & R.L. Romer. 2013. Multi-stage evolution of Late Neogene mantle-derived magmas from the Central Andes back-arc in the Southern Puna Plateau of Argentina. Journal of Petrology 54(10): 1963–1995. doi: 10.1093/petrology/egt038

Sabaj Pérez, M.H. 2016. Standard symbolic codes for institutional resource collections in herpetology and ichthyology: an online reference. Version 6.5 (16 August 2016). Washington, DC: American Society of Ichthyologists and Herpetologists. Accessed at, doi: 10.13140/rg.2.2.30826.11203

Schaefer, S.A. 2011. The Andes: Riding the tectonic uplift; pp. 259–279, in: J.S. Albert, P. Petry & R.E. Reis (eds.). Historical biogeography of Neotropical freshwater fishes. Berkeley: University of California Press.

Tchernavin, V. 1944. A revision of some Trichomycterinae based on material preserved in the British Museum Natural History. Proceedings of the Zoological Society of London 114(1–2): 234–275. doi:

Weyenbergh, H. 1877. Algunos nuevos pescados del Museo Nacional y algunas noticias ictiológicas. Acta de la Academia Nacional de Ciencias Exactas 3(1): 1–37.

Zuanon, J. & I. Sazima. 2005. Free meals on long-distance cruisers: the vampire fish rides giant catfishes in the Amazon. Biota Neotropica 5: 109–114. doi: