Living in the waterfalls: A new species of Trichomycterus (Siluriformes: Trichomycteridae) from Tabay stream, Misiones, Argentina

A new species assigned to the genus Trichomycterus from the area of the waterfalls of Tabay stream, Paraná River basin, Misiones, Argentina, is described. Trichomycterus ytororo sp. nov. is distinguished from all other species in the genus by the presence of 31?35 dorsal procurrent caudal-fin rays and the combination of some external characters such as: coloration, number of pectoral?fin rays and pores of the laterosensory canals. The new taxon belongs to a presumably monophyletic group of species composed of T. crassicaudatus, T. igobi, and T. stawiarski based on the presence of 24 or more thickly ossified and rigid procurrent caudal-fin rays with a slender distal tip extending along the tips of at least ten neural spines.

Palabras clave: Paraná River Basin , Trichomycterus Stawiarski Group , Caudal Procurrents Rays , Branchisotegal Rays

Ver el registro completo

Archivos asociados

Tamaño: 29.36Mb

Formato: PDF

Descargar

Licencia

Excepto donde se diga explícitamente, este item se publica bajo la siguiente descripción: Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Unported (CC BY-NC-SA 2.5)

Identificadores

URI: http://hdl.handle.net/11336/45980

URL: http://dx.plos.org/10.1371/journal.pone.0179594

DOI: https://doi.org/10.1371/journal.pone.0179594

Colecciones

Articulos(IBS)
Articulos de INSTITUTO DE BIOLOGIA SUBTROPICAL

Articulos(UEL)
Articulos de UNIDAD EJECUTORA LILLO

Citación

Teran, Guillermo Enrique; Ferrer, Juliano; Benitez, Mauricio Fabián; Alonso, Felipe; Aguilera, Gaston; et al.; Living in the waterfalls: A new species of Trichomycterus (Siluriformes: Trichomycteridae) from Tabay stream, Misiones, Argentina; Public Library of Science; Plos One; 12; 6; 6-2017; 1-13

Altmétricas