<i>Hyphessobrycon nicolasi</i> (Teleostei: Characidae) a new species from the Uruguay river basin in the Mesopotamian region, Argentina
- Autores
- Miquelarena, Amalia María; López, Hugo Luis
- Año de publicación
- 2010
- Idioma
- inglés
- Tipo de recurso
- artículo
- Estado
- versión publicada
- Descripción
- Hyphessobrycon nicolasi is described from the Uruguay River basin in the Mesopotamian Region, Entre Rios, Argentina. The new species can be distinguished from all congeners by the presence of a well-defined oblique and marginal black stripe on each lobe of the caudal fin. Other characters defining H. nicolasi are the possession of 1-3 teeth with 3-10 cusps on maxilla; outer premaxillary row with 2-3 small teeth, with 5 or 7 cusps; iv-vi, 27-36 anal-fin rays; 33-36 scales on the longitudinal series; two vertical dark spots on the humeral region; dorsal and anal fins dappled in black and base of caudal fin bearing conspicuous black spot; and the presence of bony hooks on the rays of dorsal, anal and caudal fins of the mature males.
Hyphessobrycon nicolasi é descrito da bacia do rio Uruguai, na Região Mesopotâmica, Entre Ríos, Argentina. A nova espécie pode ser distinguida de suas congêneres pela presença de uma faixa oblíqua preta bem definida na margen de cada lóbo da nadadeira caudal. Outros caracteres que definem H. nicolasi são a presença de 1-3 dentes com 3-10 cúspides no maxilar, fileira externa do pré-maxilar com 2-3 dentes pequenos, com 5 ou 7 cúspides; iv-vi, 27-36 raios na nadadeira anal; 33-36 escamas na série longitudinal; duas manchas verticais pretas na região umeral; nadadeiras dorsal e anal manchadas de negro e base da nadadeira caudal com uma mancha negra conspícua; e pela presença de ganchos ósseos nos raios das nadadeiras dorsal, anal e caudal nos machos maduros.
Facultad de Ciencias Naturales y Museo - Materia
-
Ciencias Naturales
Zoología
Argentina
Biodiversity
Characidae
Endemism
Hyphessobrycon
Neotropical fish
Ostariophysi
Teleostei - Nivel de accesibilidad
- acceso abierto
- Condiciones de uso
- http://creativecommons.org/licenses/by-nc/3.0/
- Repositorio
- Institución
- Universidad Nacional de La Plata
- OAI Identificador
- oai:sedici.unlp.edu.ar:10915/42536
Ver los metadatos del registro completo
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<i>Hyphessobrycon nicolasi</i> (Teleostei: Characidae) a new species from the Uruguay river basin in the Mesopotamian region, ArgentinaMiquelarena, Amalia MaríaLópez, Hugo LuisCiencias NaturalesZoologíaArgentinaBiodiversityCharacidaeEndemismHyphessobryconNeotropical fishOstariophysiTeleostei<i>Hyphessobrycon nicolasi</i> is described from the Uruguay River basin in the Mesopotamian Region, Entre Rios, Argentina. The new species can be distinguished from all congeners by the presence of a well-defined oblique and marginal black stripe on each lobe of the caudal fin. Other characters defining <i>H. nicolasi</i> are the possession of 1-3 teeth with 3-10 cusps on maxilla; outer premaxillary row with 2-3 small teeth, with 5 or 7 cusps; iv-vi, 27-36 anal-fin rays; 33-36 scales on the longitudinal series; two vertical dark spots on the humeral region; dorsal and anal fins dappled in black and base of caudal fin bearing conspicuous black spot; and the presence of bony hooks on the rays of dorsal, anal and caudal fins of the mature males.<i>Hyphessobrycon nicolasi</i> é descrito da bacia do rio Uruguai, na Região Mesopotâmica, Entre Ríos, Argentina. A nova espécie pode ser distinguida de suas congêneres pela presença de uma faixa oblíqua preta bem definida na margen de cada lóbo da nadadeira caudal. Outros caracteres que definem <i>H. nicolasi</i> são a presença de 1-3 dentes com 3-10 cúspides no maxilar, fileira externa do pré-maxilar com 2-3 dentes pequenos, com 5 ou 7 cúspides; iv-vi, 27-36 raios na nadadeira anal; 33-36 escamas na série longitudinal; duas manchas verticais pretas na região umeral; nadadeiras dorsal e anal manchadas de negro e base da nadadeira caudal com uma mancha negra conspícua; e pela presença de ganchos ósseos nos raios das nadadeiras dorsal, anal e caudal nos machos maduros.Facultad de Ciencias Naturales y Museo2010info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf1-6http://sedici.unlp.edu.ar/handle/10915/42536enginfo:eu-repo/semantics/altIdentifier/url/http://www.scielo.br/pdf/ni/v8n1/v08n1a01.pdfinfo:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc/3.0/Creative Commons Attribution-NonCommercial 3.0 Unported (CC BY-NC 3.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-09-29T10:57:08Zoai:sedici.unlp.edu.ar:10915/42536Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-09-29 10:57:09.198SEDICI (UNLP) - Universidad Nacional de La Platafalse |
dc.title.none.fl_str_mv |
<i>Hyphessobrycon nicolasi</i> (Teleostei: Characidae) a new species from the Uruguay river basin in the Mesopotamian region, Argentina |
title |
<i>Hyphessobrycon nicolasi</i> (Teleostei: Characidae) a new species from the Uruguay river basin in the Mesopotamian region, Argentina |
spellingShingle |
<i>Hyphessobrycon nicolasi</i> (Teleostei: Characidae) a new species from the Uruguay river basin in the Mesopotamian region, Argentina Miquelarena, Amalia María Ciencias Naturales Zoología Argentina Biodiversity Characidae Endemism Hyphessobrycon Neotropical fish Ostariophysi Teleostei |
title_short |
<i>Hyphessobrycon nicolasi</i> (Teleostei: Characidae) a new species from the Uruguay river basin in the Mesopotamian region, Argentina |
title_full |
<i>Hyphessobrycon nicolasi</i> (Teleostei: Characidae) a new species from the Uruguay river basin in the Mesopotamian region, Argentina |
title_fullStr |
<i>Hyphessobrycon nicolasi</i> (Teleostei: Characidae) a new species from the Uruguay river basin in the Mesopotamian region, Argentina |
title_full_unstemmed |
<i>Hyphessobrycon nicolasi</i> (Teleostei: Characidae) a new species from the Uruguay river basin in the Mesopotamian region, Argentina |
title_sort |
<i>Hyphessobrycon nicolasi</i> (Teleostei: Characidae) a new species from the Uruguay river basin in the Mesopotamian region, Argentina |
dc.creator.none.fl_str_mv |
Miquelarena, Amalia María López, Hugo Luis |
author |
Miquelarena, Amalia María |
author_facet |
Miquelarena, Amalia María López, Hugo Luis |
author_role |
author |
author2 |
López, Hugo Luis |
author2_role |
author |
dc.subject.none.fl_str_mv |
Ciencias Naturales Zoología Argentina Biodiversity Characidae Endemism Hyphessobrycon Neotropical fish Ostariophysi Teleostei |
topic |
Ciencias Naturales Zoología Argentina Biodiversity Characidae Endemism Hyphessobrycon Neotropical fish Ostariophysi Teleostei |
dc.description.none.fl_txt_mv |
<i>Hyphessobrycon nicolasi</i> is described from the Uruguay River basin in the Mesopotamian Region, Entre Rios, Argentina. The new species can be distinguished from all congeners by the presence of a well-defined oblique and marginal black stripe on each lobe of the caudal fin. Other characters defining <i>H. nicolasi</i> are the possession of 1-3 teeth with 3-10 cusps on maxilla; outer premaxillary row with 2-3 small teeth, with 5 or 7 cusps; iv-vi, 27-36 anal-fin rays; 33-36 scales on the longitudinal series; two vertical dark spots on the humeral region; dorsal and anal fins dappled in black and base of caudal fin bearing conspicuous black spot; and the presence of bony hooks on the rays of dorsal, anal and caudal fins of the mature males. <i>Hyphessobrycon nicolasi</i> é descrito da bacia do rio Uruguai, na Região Mesopotâmica, Entre Ríos, Argentina. A nova espécie pode ser distinguida de suas congêneres pela presença de uma faixa oblíqua preta bem definida na margen de cada lóbo da nadadeira caudal. Outros caracteres que definem <i>H. nicolasi</i> são a presença de 1-3 dentes com 3-10 cúspides no maxilar, fileira externa do pré-maxilar com 2-3 dentes pequenos, com 5 ou 7 cúspides; iv-vi, 27-36 raios na nadadeira anal; 33-36 escamas na série longitudinal; duas manchas verticais pretas na região umeral; nadadeiras dorsal e anal manchadas de negro e base da nadadeira caudal com uma mancha negra conspícua; e pela presença de ganchos ósseos nos raios das nadadeiras dorsal, anal e caudal nos machos maduros. Facultad de Ciencias Naturales y Museo |
description |
<i>Hyphessobrycon nicolasi</i> is described from the Uruguay River basin in the Mesopotamian Region, Entre Rios, Argentina. The new species can be distinguished from all congeners by the presence of a well-defined oblique and marginal black stripe on each lobe of the caudal fin. Other characters defining <i>H. nicolasi</i> are the possession of 1-3 teeth with 3-10 cusps on maxilla; outer premaxillary row with 2-3 small teeth, with 5 or 7 cusps; iv-vi, 27-36 anal-fin rays; 33-36 scales on the longitudinal series; two vertical dark spots on the humeral region; dorsal and anal fins dappled in black and base of caudal fin bearing conspicuous black spot; and the presence of bony hooks on the rays of dorsal, anal and caudal fins of the mature males. |
publishDate |
2010 |
dc.date.none.fl_str_mv |
2010 |
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http://sedici.unlp.edu.ar/handle/10915/42536 |
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eng |
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