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

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 havin...

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Bibliographic Details
Published inZootaxa Vol. 4482; no. 2; p. 341
Main Authors Albornoz-garzÓn, Juan G, Conde-saldaÑa, Cristhian C, GarcÍa-Melo, Jorge E, Taphorn, Donald C, Villa-Navarro, Francisco A
Format Journal Article
LanguageEnglish
Published New Zealand 18.09.2018
Subjects
Animals
Brazil
Characidae
Colombia
Rivers
Brazil
Colombia
Pisces, taxonomy, trans-Andean region, Ostariophysi, Characiformes
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Summary: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.
ISSN:1175-5334
DOI:10.11646/zootaxa.4482.2.6