A new characid fish, Hyphessobryconhexastichos (Characiformes: Characidae) from Chapada dos Parecis, Mato Grosso, Brazil

Abstract

A new characid fish, Hyphessobrycon hexastichos (Characiformes:Characidae) from Chapada dos Parecis, Mato Grosso, BrazilVinicius A. Bertaco and Tiago P. CarvalhoA new characid species, Hyphessobrycon hexastichos, is described from the upper rio Tapajós, Mato Grosso, Brazil. The new species is distinguished from all other Hyphessobrycon species by the presence of black zigzag longitudinal lines between longitudinal rows of scales in the lateral of body, maxilla with 3-5 teeth, i,6 pelvic-fin rays, 18-22 branched anal-fin rays, 4 scale rows above and 3 scale rows below of lateral line, lateral line with 9-13 perforated scales, and 33-35 scales in a longitudinal series.Uma nova espécie de caracídeo, Hyphessobrycon hexastichos é descrita para alto rio Tapajós, Mato Grosso, Brasil. A nova espécie distingue-se das demais espécies de Hyphessobrycon pela presença de linhas longitudinais pretas em ziguezague entre as faixas de escamas longitudinais na lateral do corpo, 3-5 dentes no maxilar, i,6 raios na nadadeira pélvica, 18-22 raios ramificados na nadadeira anal, 4 escamas acima e 3 escamas abaixo da linha lateral, 9-13 escamas perfuradas na linha lateral, e 33-35 escamas em uma série longitudinal.

Moenkhausia rubra, a new species from rio Juruena, upper rio Tapajós basin, Brazil (Characiformes: Characidae)

“…The description of M. rubra and many other species in the last decade (e.g., Britski & Garavello, 2005;Bertaco & Carvalho, 2005a;2005b;Fisch-Muller et al, 2005;Vari et al, 2005;Carvalho & Bertaco, 2006;Menezes, 2006;Bertaco & Garutti, 2007;Bertaco & Malabarba, 2007;Britski & Garavello, 2007;Britski & Lima, 2008;Scharcansky & Lucena, 2007;Sousa et al, 2010;Carvalho & Datovo, 2012;Varella et al, 2012), all restricted to the upper rio Tapajós, confirm both facts. …”

Ichthyofauna of the upper Juruena river on Chapada dos Parecis, Mato Grosso, Brazil

“…Available literature records about the ichthyofauna of the rio Tapajós basin are primarily concerned with the description of new species (Bertaco & Malabarba 2007, Bertaco & Carvalho 2005a, b, Bertaco & Garutti 2007, Birindelli et al 2008, Britski & Garavello 1980, 1993, Britski & Lima 2008, Caires & Figueiredo 2011, Caires 2013, Calegari et al 2013, Carvalho & Bertaco 2006, Castro 1993, Carvalho & Datovo 2012, Campos-da-Paz 2002, Costa 1991, 1994, Dagosta & Netto-Ferreira 2015, Eigenmann 1908, 1917, de Oliveira et al 2010, Dutra et al 2012, Espíndola et al 2014, Fink 1979, Feitosa et al 2011, Fichberg et al 2014, Fink 1979, Fisch-Muller et al 2005a, b, Géry 1980, Hollanda-Carvalho & Weber 2005, Isbrücker & Nijessen 1989, Kullander 1988, Kullander 1990, Kullander & Ferreira 2006, Langeani 1999, Lima et al 2007, Lima & Flausino 2016, Loeb 2012, Lucena 2003, Lujan et al 2010, Lundberg & Mago-Leccia 1986…”

Hyphessobrycon nicolasi (Teleostei: Characidae) a new species from the Uruguay River basin in the Mesopotamian Region, Argentina

“…Authors that have recently addressed the systematics of the genus are unanimous in pointing out that the group is not well defined and its monophyly is yet uncertain (e.g., Bertaco & Carvalho, 2005;Bertaco & Malabarba, 2005;Carvalho & Bertaco, 2006;Bertaco et al, 2007).…”