Artigo

A new species of Hemigrammus gill, 1858 (Characiformes: Characidae) from the Rio Madeira and Rio Paraguai basins, with a redescription of H. lunatus

A new Hemigrammus is described from the rio Paraguai and rio Madeira basins, Mato Grosso and Rondônia States, Brazil. The new species is characterized by possessing a wide dark horizontal stripe across the eye, a vertically elongated humeral blotch, and 4-5 gill-rakers on upper branch and 9-10 on lo...

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Autor principal: Ota, Rafaela Priscila
Outros Autores: Lima, Flávio César Thadeo, Pavanelli, C. S.
Grau: Artigo
Idioma: English
Publicado em: Neotropical Ichthyology 2020
Acesso em linha: https://repositorio.inpa.gov.br/handle/1/14582
id oai:repositorio:1-14582
recordtype dspace
spelling oai:repositorio:1-14582 A new species of Hemigrammus gill, 1858 (Characiformes: Characidae) from the Rio Madeira and Rio Paraguai basins, with a redescription of H. lunatus Ota, Rafaela Priscila Lima, Flávio César Thadeo Pavanelli, C. S. A new Hemigrammus is described from the rio Paraguai and rio Madeira basins, Mato Grosso and Rondônia States, Brazil. The new species is characterized by possessing a wide dark horizontal stripe across the eye, a vertically elongated humeral blotch, and 4-5 gill-rakers on upper branch and 9-10 on lower. The new species can be easily diagnosed from H. lunatus, the sympatric and morphologically most similar congener, by the shape of humeral blotch and the number of gill rakers. Data of the type material of both Hemigrammus lunatus and H. maxillaris, as well as extensive examination of specimens, allowed us to conclude that H. maxillaris is a junior subjective synonym of H. lunatus. A redescription of H. lunatus, as well as a formal restriction of its type locality, is provided. A putative monophyletic group within Hemigrammus, composed by H. barrigonae, Hemigrammus lunatus, H. machadoi new species, and H. ulreyi, named Hemigrammus lunatus group, is proposed based on overall body morphology and color pattern. Additionally, a discussion on the biogeographical relationships between the rio Paraguai and rio Guaporé basins is provided. © 2014 Sociedade Brasileira de Ictiologia. 2020-04-24T16:55:05Z 2020-04-24T16:55:05Z 2014 Artigo https://repositorio.inpa.gov.br/handle/1/14582 10.1590/1982-0224-20130176 en Volume 12, Número 2, Pags. 265-279 Attribution-NonCommercial-NoDerivs 3.0 Brazil http://creativecommons.org/licenses/by-nc-nd/3.0/br/ application/pdf Neotropical Ichthyology
institution Instituto Nacional de Pesquisas da Amazônia - Repositório Institucional
collection INPA-RI
language English
description A new Hemigrammus is described from the rio Paraguai and rio Madeira basins, Mato Grosso and Rondônia States, Brazil. The new species is characterized by possessing a wide dark horizontal stripe across the eye, a vertically elongated humeral blotch, and 4-5 gill-rakers on upper branch and 9-10 on lower. The new species can be easily diagnosed from H. lunatus, the sympatric and morphologically most similar congener, by the shape of humeral blotch and the number of gill rakers. Data of the type material of both Hemigrammus lunatus and H. maxillaris, as well as extensive examination of specimens, allowed us to conclude that H. maxillaris is a junior subjective synonym of H. lunatus. A redescription of H. lunatus, as well as a formal restriction of its type locality, is provided. A putative monophyletic group within Hemigrammus, composed by H. barrigonae, Hemigrammus lunatus, H. machadoi new species, and H. ulreyi, named Hemigrammus lunatus group, is proposed based on overall body morphology and color pattern. Additionally, a discussion on the biogeographical relationships between the rio Paraguai and rio Guaporé basins is provided. © 2014 Sociedade Brasileira de Ictiologia.
format Artigo
author Ota, Rafaela Priscila
spellingShingle Ota, Rafaela Priscila
A new species of Hemigrammus gill, 1858 (Characiformes: Characidae) from the Rio Madeira and Rio Paraguai basins, with a redescription of H. lunatus
author2 Lima, Flávio César Thadeo
Pavanelli, C. S.
author2Str Lima, Flávio César Thadeo
Pavanelli, C. S.
title A new species of Hemigrammus gill, 1858 (Characiformes: Characidae) from the Rio Madeira and Rio Paraguai basins, with a redescription of H. lunatus
title_short A new species of Hemigrammus gill, 1858 (Characiformes: Characidae) from the Rio Madeira and Rio Paraguai basins, with a redescription of H. lunatus
title_full A new species of Hemigrammus gill, 1858 (Characiformes: Characidae) from the Rio Madeira and Rio Paraguai basins, with a redescription of H. lunatus
title_fullStr A new species of Hemigrammus gill, 1858 (Characiformes: Characidae) from the Rio Madeira and Rio Paraguai basins, with a redescription of H. lunatus
title_full_unstemmed A new species of Hemigrammus gill, 1858 (Characiformes: Characidae) from the Rio Madeira and Rio Paraguai basins, with a redescription of H. lunatus
title_sort new species of hemigrammus gill, 1858 (characiformes: characidae) from the rio madeira and rio paraguai basins, with a redescription of h. lunatus
publisher Neotropical Ichthyology
publishDate 2020
url https://repositorio.inpa.gov.br/handle/1/14582
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score 11.755432

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