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Issue: Vol. 4482 No. 2: 18 Sept. 2018
Type: Article
Published: 2018-09-18
DOI: 10.11646/zootaxa.4482.2.6
Page range: 341–354
Abstract views: 120
PDF downloaded: 1

A new species of Creagrutus (Characidae: Stevardiinae) from the upper Río Magdalena, Colombia

Grupo de Investigación en Zoología, Departamento de Biología, Facultad de Ciencias, Universidad del Tolima, Calle 42 #1B-1, Ibagué, Tolima, Colombia Colecciones Biológicas, Instituto de Investigación de Recursos Biológicos Alexander von Humboldt, Claustro de San Agustín, Carrera 8 No. 15-08, Villa de Leyva, Boyacá, Colombia
Grupo de Investigación en Zoología, Departamento de Biología, Facultad de Ciencias, Universidad del Tolima, Calle 42 #1B-1, Ibagué, Tolima, Colombia Departamento de Morfologia, Instituto de Biociências, Universidade Estadual Paulista (UNESP), Campus de Botucatu, Rubião Jr, 18618-689, Botucatu, SP, Brazil.
Laboratorio de Ictiología, Unidad de Ecología y Sistemática (UNESIS), Doctorado en Ciencias Biológicas, Pontificia Universidad Javeriana, Carrera 7 No. 43-82, Bogotá, Colombia.
1822 N. Charles St., Belleville, Illinois, USA, 62221.
Grupo de Investigación en Zoología, Departamento de Biología, Facultad de Ciencias, Universidad del Tolima, Calle 42 #1B-1, Ibagué, Tolima, Colombia.
Pisces taxonomy trans-Andean region Ostariophysi Characiformes

Abstract

A new species of Creagrutus is described from several localities in the upper Río Magdalena drainage, Colombia. Creagrutus dulima n. sp. differs from all trans-Andean congeners by the combination of a relatively small orbital diameter, the shape and position of hooks on the pelvic-fin rays, in having the third infraorbital not in contact with the preopercle ventrally, and the presence of a dark, reticulated pigmentation pattern on the dorsal portion of body. The distribution of Creagrutus species in the Magdalena-Cauca River Basin is discussed, and an updated identification key for species of trans-Andean Creagrutus is provided.

 

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