A new species of Hypostomus Lacépède, 1803 (Siluriformes: Loricariidae) from the rio Tocantins-Araguaia basin, Brazil
Hypostomus delimaiis described from the rio Tocantins, Tocantins State, and from the rio Araguaia, Pará, and Tocantins States, Brazil. The new species is distinguished from all other Hypostomusspecies, except from H. carinatus, H. hoplonites, and H. watwata, by the presence of five to eight (mode se...
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doaj-302080117fa14c88bb70ba003b410b662020-11-24T22:39:22ZengSociedade Brasileira de IctiologiaNeotropical Ichthyology1982-0224111738010.1590/S1679-62252013000100008S1679-62252013000100073A new species of Hypostomus Lacépède, 1803 (Siluriformes: Loricariidae) from the rio Tocantins-Araguaia basin, BrazilCláudio Henrique ZawadzkiRenildo Ribeiro de OliveiraTiago DebonaHypostomus delimaiis described from the rio Tocantins, Tocantins State, and from the rio Araguaia, Pará, and Tocantins States, Brazil. The new species is distinguished from all other Hypostomusspecies, except from H. carinatus, H. hoplonites, and H. watwata, by the presence of five to eight (mode seven) predorsal plates limiting posterior border of the supraoccipital bone (vs. one to three plates). It can be distinguished from H. carinatus, H. hoplonites, and H. watwata by having pale spots over darker background on body and fins (vs. dark spots over lighter background). The species was only found in the middle stretches of the rio Tocantins-Araguaia basin. The first collection of specimens assigned to the new species was done in the rio Tocantins before the construction of the Tucuruí dam. Recently additional material was collected in the rio Araguaia, in a habitat that soon will be flooded for the construction of the Santa Isabel hydroelectric power station.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100073&lng=en&tlng=enCantãoCatfishHydroelectricHypostominaeNeotropical fishesTaxonomy |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Cláudio Henrique Zawadzki Renildo Ribeiro de Oliveira Tiago Debona |
spellingShingle |
Cláudio Henrique Zawadzki Renildo Ribeiro de Oliveira Tiago Debona A new species of Hypostomus Lacépède, 1803 (Siluriformes: Loricariidae) from the rio Tocantins-Araguaia basin, Brazil Neotropical Ichthyology Cantão Catfish Hydroelectric Hypostominae Neotropical fishes Taxonomy |
author_facet |
Cláudio Henrique Zawadzki Renildo Ribeiro de Oliveira Tiago Debona |
author_sort |
Cláudio Henrique Zawadzki |
title |
A new species of Hypostomus Lacépède, 1803 (Siluriformes: Loricariidae) from the rio Tocantins-Araguaia basin, Brazil |
title_short |
A new species of Hypostomus Lacépède, 1803 (Siluriformes: Loricariidae) from the rio Tocantins-Araguaia basin, Brazil |
title_full |
A new species of Hypostomus Lacépède, 1803 (Siluriformes: Loricariidae) from the rio Tocantins-Araguaia basin, Brazil |
title_fullStr |
A new species of Hypostomus Lacépède, 1803 (Siluriformes: Loricariidae) from the rio Tocantins-Araguaia basin, Brazil |
title_full_unstemmed |
A new species of Hypostomus Lacépède, 1803 (Siluriformes: Loricariidae) from the rio Tocantins-Araguaia basin, Brazil |
title_sort |
new species of hypostomus lacépède, 1803 (siluriformes: loricariidae) from the rio tocantins-araguaia basin, brazil |
publisher |
Sociedade Brasileira de Ictiologia |
series |
Neotropical Ichthyology |
issn |
1982-0224 |
description |
Hypostomus delimaiis described from the rio Tocantins, Tocantins State, and from the rio Araguaia, Pará, and Tocantins States, Brazil. The new species is distinguished from all other Hypostomusspecies, except from H. carinatus, H. hoplonites, and H. watwata, by the presence of five to eight (mode seven) predorsal plates limiting posterior border of the supraoccipital bone (vs. one to three plates). It can be distinguished from H. carinatus, H. hoplonites, and H. watwata by having pale spots over darker background on body and fins (vs. dark spots over lighter background). The species was only found in the middle stretches of the rio Tocantins-Araguaia basin. The first collection of specimens assigned to the new species was done in the rio Tocantins before the construction of the Tucuruí dam. Recently additional material was collected in the rio Araguaia, in a habitat that soon will be flooded for the construction of the Santa Isabel hydroelectric power station. |
topic |
Cantão Catfish Hydroelectric Hypostominae Neotropical fishes Taxonomy |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252013000100073&lng=en&tlng=en |
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