<i>Chrysobrycon yoliae</i>, a new species of stevardiin (Characiformes: Characidae) from the Ucayali basin, Peru

Chrysobrycon yoliae, new species, is described from a drainage flowing into the río Yucamia basin, río Ucayali basin, Peru. Chrysobrycon yoliaeis readily distinguished from its congeners by the anterior tip of pelvic bone situated anterior to the fifth rib (vs. situated posterior to the fifth rib),...

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Autores principales: Vanegas Ríos, James Anyelo, Azpelicueta, María de las Mercedes, Ortega, Hernán
Formato: Articulo
Lenguaje:Inglés
Publicado: 2014
Materias:
Ciencias Naturales
Xenurobryconini
Pit organs
Amazon basin
Pouch scale
Sexual dimorphism
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/102339
https://ri.conicet.gov.ar/11336/32790
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-102339
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Ciencias Naturales
Xenurobryconini
Pit organs
Amazon basin
Pouch scale
Sexual dimorphism
spellingShingle Ciencias Naturales
Xenurobryconini
Pit organs
Amazon basin
Pouch scale
Sexual dimorphism
Vanegas Ríos, James Anyelo
Azpelicueta, María de las Mercedes
Ortega, Hernán
<i>Chrysobrycon yoliae</i>, a new species of stevardiin (Characiformes: Characidae) from the Ucayali basin, Peru
topic_facet Ciencias Naturales
Xenurobryconini
Pit organs
Amazon basin
Pouch scale
Sexual dimorphism
description Chrysobrycon yoliae, new species, is described from a drainage flowing into the río Yucamia basin, río Ucayali basin, Peru. Chrysobrycon yoliaeis readily distinguished from its congeners by the anterior tip of pelvic bone situated anterior to the fifth rib (vs. situated posterior to the fifth rib), the presence of 20-26 dentary teeth (vs. 11-19), and the possession of a terminal lateral-line tube between caudal-fin rays 10 and 11 (vs. the absence of this tube, except in C. eliasi). The new species differs from C. eliasi and C. myersi by the presence of teeth on third pharyngobranchial (vs. the absence of teeth on this bone) and also differs from C. eliasi by the dorsal-fin origin situated at vertical through anal-fin rays 5 to 7 (vs. located at vertical through anal-fin rays 8 to 10), the posterior extent of the ventral process of quadrate reaching the vertical through posterior margin of symplectic (vs. not reaching the vertical through posterior margin of symplectic), the dorsal-fin to adipose-fin length 26.8-28.8% SL (vs. 23.9-26.8% SL), and the body depth at dorsal-fin origin 34.4-42.2% SL (vs. 24.1-34.5% SL). A key for the identification of Chrysobrycon species is provided.
format Articulo
Articulo
author Vanegas Ríos, James Anyelo
Azpelicueta, María de las Mercedes
Ortega, Hernán
author_facet Vanegas Ríos, James Anyelo
Azpelicueta, María de las Mercedes
Ortega, Hernán
author_sort Vanegas Ríos, James Anyelo
title <i>Chrysobrycon yoliae</i>, a new species of stevardiin (Characiformes: Characidae) from the Ucayali basin, Peru
title_short <i>Chrysobrycon yoliae</i>, a new species of stevardiin (Characiformes: Characidae) from the Ucayali basin, Peru
title_full <i>Chrysobrycon yoliae</i>, a new species of stevardiin (Characiformes: Characidae) from the Ucayali basin, Peru
title_fullStr <i>Chrysobrycon yoliae</i>, a new species of stevardiin (Characiformes: Characidae) from the Ucayali basin, Peru
title_full_unstemmed <i>Chrysobrycon yoliae</i>, a new species of stevardiin (Characiformes: Characidae) from the Ucayali basin, Peru
title_sort <i>chrysobrycon yoliae</i>, a new species of stevardiin (characiformes: characidae) from the ucayali basin, peru
publishDate 2014
url http://sedici.unlp.edu.ar/handle/10915/102339
https://ri.conicet.gov.ar/11336/32790
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