A New Hyphessobrycon Durbin from the Rio Teles Pires, Rio Tapajós Basin, Mato Grosso State, Brazil (Characiformes: Characidae)

Teixeira, Tarso Felipe; Lima, Flávio C. T.; Zuanon, Jansen

doi:10.1643/ci-13-026

Cited by 15 publications

(9 citation statements)

References 23 publications

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“…Dagosta et al 2012), and descriptions of new species (e.g. Kullander and Ferreira 2005; Lima et al 2009; Sousa et al 2010; Ribeiro et al 2011; Dutra et al 2012; Teixeira et al 2013; Espíndola et al 2014; Román-Valencia et al 2014; Silva-Oliveira et al 2015). …”

Section: Introductionmentioning

confidence: 99%

Stream ichthyofauna of the Tapajós National Forest, Pará, Brazil

Silva-Oliveira¹,

Canto²,

Ribeiro³

2016

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The fish fauna of freshwater streams in the Tapajos National Forest was surveyed and a list of species is presented. The sampling was conducted from 2012 to 2013 during the dry season. Fish were collected with dip nets and seine nets in 22 streams of 1st to 3rd order. Sampling resulted in 3035 specimens belonging to 117 species, 27 families and six orders. The most abundant species were Bryconops aff. melanurus, Hemigrammus belottii, and Hemigrammus analis. Four undescribed species were recognized, one of which is known only from the area of this study. A significant dissimilarity was observed in fish species composition among drainage systems. This is the first survey of the stream ichthyofauna in the Tapajós National Forest, and it presents relevant information for future studies and decision-making in the management and conservation of fish fauna in this conservation unit.

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Section: Introductionmentioning

confidence: 99%

Stream ichthyofauna of the Tapajós National Forest, Pará, Brazil

Silva-Oliveira¹,

Canto²,

Ribeiro³

2016

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“…3(a), (b)]. Secondary sexual dimorphism is frequently reported and discussed among characiforms, mainly regarding the presence of bony hooks on fins (Wiley & Collette, 1970;Fink & Weitzman, 1974;Weitzman & Fink, 1985;Weitzman et al, 1994;Malabarba & Weitzman, 1999Lima & Sousa, 2009;Camelier & Zanata, 2014;Vieira et al, 2016) or shape of the dorsal and anal fins (Costa & Géry, 1994;Weitzman & Palmer, 1997;Moreira et al, 2002a,b;Teixeira et al, 2013;Ingenito et al, 2013;Dagosta et al, 2014;Marinho et al, 2014;Pastana & Ohara, 2016). Although sexual dichromatism in Characidae has been known for over a century (Eigenmann, 1912(Eigenmann, , 1917, descriptions of such dimorphism are still scarce in taxonomic literature.…”

Section: Discussionmentioning

confidence: 99%

A new sexually dichromatic miniature Hyphessobrycon (Teleostei: Characiformes: Characidae) from the Rio Formiga, upper Rio Juruena basin, Mato Grosso, Brazil, with a review of sexual dichromatism in Characiformes

Pastana

Dagosta

Esguícero

2017

Journal of Fish Biology

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Hyphessobrycon myrmex sp. nov., is described from the Rio Formiga, upper Rio Juruena, upper Rio Tapajós basin, Mato Grosso, Brazil. The new species can be distinguished from congeners by having the lower half of the body deeply pigmented with dark chromatophores, chromatophores concentrated above the anal fin and forming a broad, diffuse, dark midlateral stripe and by having a dense concentration of dark chromatophores along unbranched dorsal-fin rays and distal portions of the two or three subsequent branched rays. In life, H. myrmex exhibits a conspicuous sexual dichromatism, with adult males red to orange and females and immatures pale yellow. A list containing 108 sexually dichromatic taxa in six families of Characiformes is provided and the distribution of this poorly known type of dimorphism across the Characiformes is discussed.

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“…Dentary and premaxillary teeth with increased cusp number is an uncommon condition among Hyphessobrycon, Hemigrammus Gill 1858 and related small characid genera (Teixeira et al, 2014). Few characids possess multicuspid and compressed teeth (frequently with seven or more cusps).…”

Section: Discussionmentioning

confidence: 99%

Hyphessobrycon platyodus (Teleostei: Characiformes), a new species from the Rio Madeira basin, Brazil, with comments on how multicuspid teeth relate to feeding habits in Characidae

Ohara

Abrahão

Espíndola

2017

Journal of Fish Biology

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A new species of Hyphessobrycon is described from the Rio Juma, a tributary of the lower Rio Aripuanã-Rio Madeira basin, Amazonas, Brazil. Hyphessobrycon platyodus can be distinguished from its congeners by the: presence of an elongated dorsal fin in adult males, 25-28 branched anal-fin rays and absence of dark blotches from the dorsal fin and caudal peduncle. The presence of multicuspid teeth in species of Characidae and its relation with feeding habits are briefly commented on.

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A New Hyphessobrycon Durbin from the Rio Teles Pires, Rio Tapajós Basin, Mato Grosso State, Brazil (Characiformes: Characidae)

Cited by 15 publications

References 23 publications

Stream ichthyofauna of the Tapajós National Forest, Pará, Brazil

Stream ichthyofauna of the Tapajós National Forest, Pará, Brazil

A new sexually dichromatic miniature Hyphessobrycon (Teleostei: Characiformes: Characidae) from the Rio Formiga, upper Rio Juruena basin, Mato Grosso, Brazil, with a review of sexual dichromatism in Characiformes

Hyphessobrycon platyodus (Teleostei: Characiformes), a new species from the Rio Madeira basin, Brazil, with comments on how multicuspid teeth relate to feeding habits in Characidae

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