Abstract
A new species of Leporinus is described from the rio Teles Pires, rio Tapajós basin, Amazon basin, Brazil. The new species is diagnosed based on dental formula 3/4, a dark midlateral stripe on body and a series of transversal dark bars on the dorsum. The new species is similar to a handful of congeners based on the color pattern, including L. britski, L. microphysus, L. parvulus, and L. vanzoi, all of which also occur at the rio Tapajós basin. The new species is distinguished from the aforementioned congeners based on number of premaxillary teeth, number of scales in lateral line and/or around caudal peduncle. The new species is apparently endemic to the rio Teles Pires near the Sete Quedas rapids and upstream.
References
Birindelli, J.L. & Britski, H.A. (2009) New species of the genus Leporinus Agassiz (Characiformes: Anostomidae) from the rio Curuá, rio Xingu basin, Serra do Cachimbo, Brazil, with comments on Leporinus reticulatus. Neotropical Ichthyology, 7, 1–10.
https://doi.org/10.1590/S1679-62252009000100001
Birindelli, J.L.O. & Britski, H.A. (2013) Two new species of Leporinus (Characiformes: Anostomidae) from the Brazilian Amazon, and redescription of Kner 1858. Journal of Fish Biology, 83 (5), 1128–1160.
https://doi.org/10.1111/jfb.12206
Birindelli, J.L.O., Britski, H.A. & Lima, F.C.T. (2013) New species of Leporinus from the Rio Tapajós Basin, Brazil, and redescription of L. moralesi (Characiformes, Anostomidae). Copeia, 2013 (2), 242–251.
https://doi.org/10.1643/CI-12-081
Britski, H.A. & Birindelli, J.L.O. (2016) Redescription of Leporinus altipinnis, a senior synonym of L. falcipinnis, and comments on L. holostictus (Characiformes: Anostomidae). Ichthyological Exploration of Freshwaters, 27 (1), 25–40.
Britski, H.A. & Garavello, J.C. (1978) Sobre Leporinus octofasciatus Steindachner da bacia do Paraná (Pisces, Anostomidae). Papeis Avulsos de Zoologia, 31, 237–250.
Britski, H.A. & Garavello, J.C. (1980) Sobre uma nova espécie de Leporinus da bacia amazônica (Pisces, Anostomidae) com considerações sobre L. striatus Kner, 1859 e espécies afins. Papéis Avulsos de Zoologia, 33, 253–262.
Britski, H.A. & Garavello, J.C. (2005) Uma nova espécie de Leporinus Agassiz, 1829,
da bacia amazônica (Ostariophysi: Characiformes,: Anostomidae. Comunicações do Museu de Ciências e Tecnologia da PUCRS, Série Zoologia, 18 (2), 75–83.
Buckup, P.A., Britto, M.R., Gomes, J.R., Birindelli, J.L.O., Lima, F.C.T., Maldonado-Ocampo, J.A., Zawadzki, C.H., Carvalho, F.R., Jerep, F.C., Chamon, C.C., Fries, L.C., Villa Verde, L., Camargo, M., Souza-Lima, R., Bartolette R. & Wingert, J. (2011) Inventário da Ictiofauna da Ecorregião Aquática Xingu-Tapajós. In: Castilhos, Z.C. & Buckup, P.A. (Org.), Ecorregião Aquática Xingu-Tapajós. CETEM/MCT, Rio de Janeiro, pp. 163–174.
Garavello, J.C. & Britski, H.A. (2003) Family Anostomidae. In: Reis, R.E., Kullander, S. & Ferraris Jr., C. F. (Eds.), Check List of the Freshwater Fishes of South and Central America. Edipucrs, Porto Alegre, pp. 71–84.
Feitosa, F.S., Santos, G.M. & Birindelli, J.L.O. (2011) Leporinus britskii: a new anostomid species from the Tapajós and Jari drainages, Brazil (Characiformes: Anostomidae). Zootaxa, 3120, 55–62.
Ohara, W.M., Lima, F.C.T., Salvador, G.N. & Andrade, M.C. (2017) Peixes do Rio Teles Pires. Diversidade e Guia de Identificação. Gráfica e Editora Amazonas, Goiânia, 408 pp.
Ramirez, J.L., Birindelli, J.L.O. & Galetti, P.M. (2016) A new genus of Anostomidae (Ostariophysi: Characiformes): diversity, phylogeny and biogeography based on cytogenetic, molecular and morphological data. Molecular Phylogenetics and Evolution, 107, 308–323.
https://doi.org/10.1016/j.ympev.2016.11.012
Sabaj M.H. (2016) Standard symbolic codes for institutional resource collections in herpetology and ichthyology: an Online Reference. Version 6.5 (16 August 2016). American Society of Ichthyologists and Herpetologists, Washington, D.C. Electronically accessible. Available from: http://www.asih.org/ (accessed 4 February 2018)
Sidlauskas, B.L. & Vari, R.P. (2008) Phylogenetic relationships within the South American fish family Anostomidae (Teleostei, Ostariophysi, Characiformes). Zoological Journal of the Linnean Society, 154 (1), 70–210.
https://doi.org/10.1111/j.1096-3642.2008.00407.x
Winterbotton, R. (1980) Systematics, osteology and phylogenetic relationships of fishes of the subfamily Anostominae (Characoidei, Anostomidae). Royal Ontario Museum, Life Sciences Contribution, 123, 1–112.