A new striped species of Brachychalcinus (Ostariophysi: Characiformes) from Amapá and Pará states, northern Brazil

Abstract A new species of Brachychalcinus is described from the rio Mapaoni, rio Jari basin, and the coastal rio Araguari, Amapá and Pará states, Brazil. The new species is distinguished from all congeners, except B. reisi, by possessing conspicuous longitudinal dark stripes across the body. It can...

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Main Authors: James Raul Garcia-Ayala, Flávio César Thadeo de Lima, Cecile de Souza Gama, Ricardo Cardoso Benine
Format: Article
Language:English
Published: Sociedade Brasileira de Ictiologia 2024-02-01
Series:Neotropical Ichthyology
Subjects:
Online Access:http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252024000100207&lng=en&tlng=en
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author James Raul Garcia-Ayala
Flávio César Thadeo de Lima
Cecile de Souza Gama
Ricardo Cardoso Benine
author_facet James Raul Garcia-Ayala
Flávio César Thadeo de Lima
Cecile de Souza Gama
Ricardo Cardoso Benine
author_sort James Raul Garcia-Ayala
collection DOAJ
description Abstract A new species of Brachychalcinus is described from the rio Mapaoni, rio Jari basin, and the coastal rio Araguari, Amapá and Pará states, Brazil. The new species is distinguished from all congeners, except B. reisi, by possessing conspicuous longitudinal dark stripes across the body. It can be diagnosed from B. reisi by having longer predorsal and preanal spines, by having scales with few curved radii, and by having more scale rows between lateral line and midventral scale series. A single specimen from rio Tapajós (Pará, Brazil) bears all the diagnostic features of the new species and is herein tentatively identified as belonging to this taxon, extending its distribution to this river basin.
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spelling doaj.art-388325b8f5544f2f86fb60657758a95b2024-02-20T07:40:24ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-02242024-02-0122110.1590/1982-0224-2023-0070A new striped species of Brachychalcinus (Ostariophysi: Characiformes) from Amapá and Pará states, northern BrazilJames Raul Garcia-Ayalahttps://orcid.org/0000-0002-5810-7025Flávio César Thadeo de Limahttps://orcid.org/0000-0002-7636-5431Cecile de Souza Gamahttps://orcid.org/0000-0002-5128-6120Ricardo Cardoso Beninehttps://orcid.org/0000-0002-0892-9768Abstract A new species of Brachychalcinus is described from the rio Mapaoni, rio Jari basin, and the coastal rio Araguari, Amapá and Pará states, Brazil. The new species is distinguished from all congeners, except B. reisi, by possessing conspicuous longitudinal dark stripes across the body. It can be diagnosed from B. reisi by having longer predorsal and preanal spines, by having scales with few curved radii, and by having more scale rows between lateral line and midventral scale series. A single specimen from rio Tapajós (Pará, Brazil) bears all the diagnostic features of the new species and is herein tentatively identified as belonging to this taxon, extending its distribution to this river basin.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252024000100207&lng=en&tlng=enBrachychalcinus reisiColor patternFreshwater fishesStethaprioninaeTaxonomy
spellingShingle James Raul Garcia-Ayala
Flávio César Thadeo de Lima
Cecile de Souza Gama
Ricardo Cardoso Benine
A new striped species of Brachychalcinus (Ostariophysi: Characiformes) from Amapá and Pará states, northern Brazil
Neotropical Ichthyology
Brachychalcinus reisi
Color pattern
Freshwater fishes
Stethaprioninae
Taxonomy
title A new striped species of Brachychalcinus (Ostariophysi: Characiformes) from Amapá and Pará states, northern Brazil
title_full A new striped species of Brachychalcinus (Ostariophysi: Characiformes) from Amapá and Pará states, northern Brazil
title_fullStr A new striped species of Brachychalcinus (Ostariophysi: Characiformes) from Amapá and Pará states, northern Brazil
title_full_unstemmed A new striped species of Brachychalcinus (Ostariophysi: Characiformes) from Amapá and Pará states, northern Brazil
title_short A new striped species of Brachychalcinus (Ostariophysi: Characiformes) from Amapá and Pará states, northern Brazil
title_sort new striped species of brachychalcinus ostariophysi characiformes from amapa and para states northern brazil
topic Brachychalcinus reisi
Color pattern
Freshwater fishes
Stethaprioninae
Taxonomy
url http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252024000100207&lng=en&tlng=en
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