Astyanax tumbayaensis, a new species from northwestern Argentina highlands (Characiformes: Characidae) with a key to the Argentinean species of the genus and comments on their dist...

Autores
Miquelarena, Amalia María; Menni, Roberto Carlos
Año de publicación
2005
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
A new species of the characid genus Astyanax is described from a man-made small channel connected with the Río Grande basin, in Jujuy Province, northwestern Argentina. This species can be distinguished from its congeners by the following combination of characters: body relatively high (39.2-45.3% SL); head short and heavy (24.0-26.7% SL); snout very short (16.1-20.8% HL); eye small (28.9-35.0% HL); interorbital very wide (38.8-44.1% HL); mouth sub-superior; maxilla short with 1-2 teeth; iii-v, 19-22 anal fin rays; 33-36 perforated scales on the lateral line, and a distinctive color pattern, consisting in a reticulated body, with dorsal, pelvic, anal, and caudal fins with dark margins. A very narrow lateral dark stripe ending in a caudal spot, and one large vertically elongated humeral spot. In addition the males of Astyanax tumbayaensis have bony hooks in the dorsal, pelvic, anal and caudal fins. A key for Argentinean species of Astyanax is provided. The primary traits of the distribution of species in the country are discussed, with reference to the main basins and some zoogeographically important localities.
Instituto de Limnología "Dr. Raul A. Ringuelet"
Materia
Ciencias Naturales
Astyanax
Biodiversity
Distribution
New species
Northern Argentina
Ostariophysi
Taxonomy
Nivel de accesibilidad
acceso abierto
Condiciones de uso
http://creativecommons.org/licenses/by-nc-sa/4.0/
Repositorio
SEDICI (UNLP)
Institución
Universidad Nacional de La Plata
OAI Identificador
oai:sedici.unlp.edu.ar:10915/83473
Acceder
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network_name_str SEDICI (UNLP)
spelling Astyanax tumbayaensis, a new species from northwestern Argentina highlands (Characiformes: Characidae) with a key to the Argentinean species of the genus and comments on their distributionMiquelarena, Amalia MaríaMenni, Roberto CarlosCiencias NaturalesAstyanaxBiodiversityDistributionNew speciesNorthern ArgentinaOstariophysiTaxonomyA new species of the characid genus Astyanax is described from a man-made small channel connected with the Río Grande basin, in Jujuy Province, northwestern Argentina. This species can be distinguished from its congeners by the following combination of characters: body relatively high (39.2-45.3% SL); head short and heavy (24.0-26.7% SL); snout very short (16.1-20.8% HL); eye small (28.9-35.0% HL); interorbital very wide (38.8-44.1% HL); mouth sub-superior; maxilla short with 1-2 teeth; iii-v, 19-22 anal fin rays; 33-36 perforated scales on the lateral line, and a distinctive color pattern, consisting in a reticulated body, with dorsal, pelvic, anal, and caudal fins with dark margins. A very narrow lateral dark stripe ending in a caudal spot, and one large vertically elongated humeral spot. In addition the males of Astyanax tumbayaensis have bony hooks in the dorsal, pelvic, anal and caudal fins. A key for Argentinean species of Astyanax is provided. The primary traits of the distribution of species in the country are discussed, with reference to the main basins and some zoogeographically important localities.Instituto de Limnología "Dr. Raul A. Ringuelet"2005info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionArticulohttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdf661-676http://sedici.unlp.edu.ar/handle/10915/83473enginfo:eu-repo/semantics/altIdentifier/issn/0035-418Xinfo:eu-repo/semantics/altIdentifier/doi/10.5962/bhl.part.80319info:eu-repo/semantics/openAccesshttp://creativecommons.org/licenses/by-nc-sa/4.0/Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)reponame:SEDICI (UNLP)instname:Universidad Nacional de La Platainstacron:UNLP2025-10-15T11:07:43Zoai:sedici.unlp.edu.ar:10915/83473Institucionalhttp://sedici.unlp.edu.ar/Universidad públicaNo correspondehttp://sedici.unlp.edu.ar/oai/snrdalira@sedici.unlp.edu.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:13292025-10-15 11:07:43.328SEDICI (UNLP) - Universidad Nacional de La Platafalse
dc.title.none.fl_str_mv Astyanax tumbayaensis, a new species from northwestern Argentina highlands (Characiformes: Characidae) with a key to the Argentinean species of the genus and comments on their distribution
title Astyanax tumbayaensis, a new species from northwestern Argentina highlands (Characiformes: Characidae) with a key to the Argentinean species of the genus and comments on their distribution
spellingShingle Astyanax tumbayaensis, a new species from northwestern Argentina highlands (Characiformes: Characidae) with a key to the Argentinean species of the genus and comments on their distribution
Miquelarena, Amalia María
Ciencias Naturales
Astyanax
Biodiversity
Distribution
New species
Northern Argentina
Ostariophysi
Taxonomy
title_short Astyanax tumbayaensis, a new species from northwestern Argentina highlands (Characiformes: Characidae) with a key to the Argentinean species of the genus and comments on their distribution
title_full Astyanax tumbayaensis, a new species from northwestern Argentina highlands (Characiformes: Characidae) with a key to the Argentinean species of the genus and comments on their distribution
title_fullStr Astyanax tumbayaensis, a new species from northwestern Argentina highlands (Characiformes: Characidae) with a key to the Argentinean species of the genus and comments on their distribution
title_full_unstemmed Astyanax tumbayaensis, a new species from northwestern Argentina highlands (Characiformes: Characidae) with a key to the Argentinean species of the genus and comments on their distribution
title_sort Astyanax tumbayaensis, a new species from northwestern Argentina highlands (Characiformes: Characidae) with a key to the Argentinean species of the genus and comments on their distribution
dc.creator.none.fl_str_mv Miquelarena, Amalia María
Menni, Roberto Carlos
author Miquelarena, Amalia María
author_facet Miquelarena, Amalia María
Menni, Roberto Carlos
author_role author
author2 Menni, Roberto Carlos
author2_role author
dc.subject.none.fl_str_mv Ciencias Naturales
Astyanax
Biodiversity
Distribution
New species
Northern Argentina
Ostariophysi
Taxonomy
topic Ciencias Naturales
Astyanax
Biodiversity
Distribution
New species
Northern Argentina
Ostariophysi
Taxonomy
dc.description.none.fl_txt_mv A new species of the characid genus Astyanax is described from a man-made small channel connected with the Río Grande basin, in Jujuy Province, northwestern Argentina. This species can be distinguished from its congeners by the following combination of characters: body relatively high (39.2-45.3% SL); head short and heavy (24.0-26.7% SL); snout very short (16.1-20.8% HL); eye small (28.9-35.0% HL); interorbital very wide (38.8-44.1% HL); mouth sub-superior; maxilla short with 1-2 teeth; iii-v, 19-22 anal fin rays; 33-36 perforated scales on the lateral line, and a distinctive color pattern, consisting in a reticulated body, with dorsal, pelvic, anal, and caudal fins with dark margins. A very narrow lateral dark stripe ending in a caudal spot, and one large vertically elongated humeral spot. In addition the males of Astyanax tumbayaensis have bony hooks in the dorsal, pelvic, anal and caudal fins. A key for Argentinean species of Astyanax is provided. The primary traits of the distribution of species in the country are discussed, with reference to the main basins and some zoogeographically important localities.
Instituto de Limnología "Dr. Raul A. Ringuelet"
description A new species of the characid genus Astyanax is described from a man-made small channel connected with the Río Grande basin, in Jujuy Province, northwestern Argentina. This species can be distinguished from its congeners by the following combination of characters: body relatively high (39.2-45.3% SL); head short and heavy (24.0-26.7% SL); snout very short (16.1-20.8% HL); eye small (28.9-35.0% HL); interorbital very wide (38.8-44.1% HL); mouth sub-superior; maxilla short with 1-2 teeth; iii-v, 19-22 anal fin rays; 33-36 perforated scales on the lateral line, and a distinctive color pattern, consisting in a reticulated body, with dorsal, pelvic, anal, and caudal fins with dark margins. A very narrow lateral dark stripe ending in a caudal spot, and one large vertically elongated humeral spot. In addition the males of Astyanax tumbayaensis have bony hooks in the dorsal, pelvic, anal and caudal fins. A key for Argentinean species of Astyanax is provided. The primary traits of the distribution of species in the country are discussed, with reference to the main basins and some zoogeographically important localities.
publishDate 2005
dc.date.none.fl_str_mv 2005
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Articulo
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://sedici.unlp.edu.ar/handle/10915/83473
url http://sedici.unlp.edu.ar/handle/10915/83473
dc.language.none.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv info:eu-repo/semantics/altIdentifier/issn/0035-418X
info:eu-repo/semantics/altIdentifier/doi/10.5962/bhl.part.80319
dc.rights.none.fl_str_mv info:eu-repo/semantics/openAccess
http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
eu_rights_str_mv openAccess
rights_invalid_str_mv http://creativecommons.org/licenses/by-nc-sa/4.0/
Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC BY-NC-SA 4.0)
dc.format.none.fl_str_mv application/pdf
661-676
dc.source.none.fl_str_mv reponame:SEDICI (UNLP)
instname:Universidad Nacional de La Plata
instacron:UNLP
reponame_str SEDICI (UNLP)
collection SEDICI (UNLP)
instname_str Universidad Nacional de La Plata
instacron_str UNLP
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repository.name.fl_str_mv SEDICI (UNLP) - Universidad Nacional de La Plata
repository.mail.fl_str_mv alira@sedici.unlp.edu.ar
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score 13.22299

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