Abstract
Sorubim trigonocephalus was described in 1920 by Alípio de Miranda Ribeiro, based on a single specimen collected in a locality identified as “Porto Velho”, during the "Comissão das Linhas Telegráficas Estratégicas de Mato Grosso ao Amazonas” (more commonly known as Rondon Commission). Given that the type locality is Porto Velho, the species has been referred to the Madeira River basin (Lundberg & Littmann, 2003; Littmann, 2007; Eschmeyer et al., 2016). Nevertheless, after its description, no additional specimens were collected in the Madeira basin despite several ichthyological expeditions undertaken to the area (Santos, 1996; Camargo & Giarrizzo, 2007; Rapp Py-Daniel et al., 2007; Perin et al., 2007; Pedroza et al., 2012; Casatti et al., 2013; Queiroz et al., 2013a), some of them including region of Porto Velho (Fowler, 1913; Araújo et al., 2009; Torrente-Vilara et al., 2011; Queiroz et al., 2013b).
References
Araújo, T.R., Cella-Ribeiro, A., Doria, C.R.C. & Torrente-Vilara, G. (2009) Composition and trophic structure of the ichthyofauna from a stream downriver from Santo Antonio Falls in the Madeira River, Porto Velho, RO. Biota Neotropica, 9 (3), 21–29.
http://dx.doi.org/10.1590/S1676-06032009000300001
Camargo, M. & Giarrizzo, T. (2007) Fish, Marmelos conservation area (BX044), Madeira River Basin, states of Amazonas and Rondônia, Brazil. Check List, 3 (4), 291–296.
http://dx.doi.org/10.15560/3.4.291Casatti, L., Perez-Mayorga, M.A., Carvalho, F.R., Brejão, G. & Costa, I.D. (2013) The stream fish fauna from the rio Machado basin, Rondônia State, Brazil. Check List, 9 (6), 1496–1504.
http://dx.doi.org/10.15560/9.6.1496Eschmeyer, W.N., Fricke, R. & van der Laan, R. (2016) Catalog of Fishes, California Academy of Sciences, San Francisco. Available from: http://research.calacademy.org/ichthyology/catalog (accessed 9 April 2016)
Hoehne, F.C. (1923) Phytophysionomia do Estado de Matto-Grosso e ligeiras notas a respeito da composição e distribuição de sua flora. Companhia Melhoramentos de São Paulo, 1–104.
Fowler, H.W. (1913) Fishes from the Madeira River, Brazil. Proceedings of the Academy of Natural Sciences of Philadelphia, 65, 517–579.
Littmann, M.W. (2007) Systematic review of the neotropical shovelnose catfish genus Sorubim Cuvier (Siluriformes: Pimelodidae). Zootaxa, 1422, 1–29.
Lundberg, J.G. & Littmann, M.W. (2003) Pimelodidae. In: Reis, R.E., Kullander, S.O. & Ferraris, C.J., Jr. (Eds.), Checklist of the Freshwater Fishes of South and Central America. Edipucrs, Porto Alegre, pp. 432–446.
Melgaço, B. (1884) Apontamentos para o dicionário chorographico da Provincia de Mato-grosso, Revista Trimestral do Instituto Historico Geographico e Ethnographico do Brazil, Tomo VLVII, parte 2, 307–504.
Miranda-Ribeiro, A. (1920) Peixes (excl. Characinidae). In: Commissão de Linhas Telegraphicas Estrategicas de Matto-Grosso ao Amazonas. Historia Natural. Zoologia. No. 58 (Annexo 5), 1–15, 17 unnum. pls.
Miranda-Ribeiro, P. (1953) Tipos das espécies e subespécies do Prof. Alípio de Míranda Ribeiro depositados no Museu Nacional. Arquivos do Museu Nacional de Rio de Janeiro, 42, 389–417.
Pedroza, W.S., Ribeiro, F.R.V., Teixeira, T.F., Ohara, W.M. & Rapp Py-Daniel, L.H. (2012) Ichthyofaunal survey of stretches of the Guariba and Rooselvelt Rivers, in Guariba State Park and Guariba Extractive Reserve, Madeira River basin, Amazonas, Brazil. Check List, 8 (1), 8–15.
http://dx.doi.org/10.15560/8.1.008Perin, L., Shibatta, O.A. & Bernarde, P.S. (2007) Fish, Machado River basin, Cacoal urban area, state of Rondônia, Brazil. Check List 3 (2), 94–97.
http://dx.doi.org/10.15560/3.2.94Pimenta Bueno, F.A. (1886) Carta da Provincia do Mato Grosso. Rio de Janeiro.1, 700000.
Queiroz, L.J., Torrente-Vilara, G., Ohara, W.M., Zuanon, J., Pires, T. & Doria, C.R.C. (2013a) Peixes do Rio Madeira. Dialeto, São Paulo, 1163 pp.
Queiroz, L.J., Torrente-Vilara, G., Vieira, F.G., Ohara, W.M., Zuanon, J. & Doria, C.R.C. (2013b). Fishes of Cuniã Lake, Madeira River Basin, Brazil. Check list, 9 (3), 540–548.
http://dx.doi.org/10.15560/9.3.540
Rapp Py-Daniel, L., Deus, C.P., Ribeiro, O.M. & Sousa, L.M. (2007) Peixes. In: Rapp Py-Daniel, L., Deus, C.P., Henriques, A.L., Pimpão, D.M. & Ribeiro, O.M. (Eds.), Biodiversidade do Médio Madeira: bases científicas para propostas de conservação. INPA, Manaus, pp. 89–126.
Rondon, C.M.S. (1952) Carta do estado do Mato Grosso e região circunvizinhas. Ministério da Guerra – Estado maior do Exército. 1:1.000.000.
Santos, G.M. (1996) Impactos da hidrelétrica Samuel sobre as comunidades de peixes do rio Jamari (Rondônia, Brasil). Acta Amazonica, 25 (3), 247–280.
http://dx.doi.org/10.1590/1809-43921995253280
Torrente-Vilara, G., Zuanon, J., Leprieur, F., Oberdorff, T. & Tedesco, P.A. (2011) Effects of natural rapids and waterfalls on fish assemblage structure in the Madeira River (Amazon Basin). Ecology of Freshwater Fish, 20, 588–597.
http://dx.doi.org/10.1111/j.1600-0633.2011.00508.x