Taxonomic revision and phylogenetic relationships of Dasyloricaria Isbrücker & Nijssen, 1979, with description of a new species

[Acanthicus]

Taxonomic revision and phylogenetic relationships of Dasyloricaria
Isbrücker & Nijssen, 1979 (Siluriformes: Loricariidae), with
description of a new species

Alejandro Londoño-Burbano & Roberto E. Reis

Abstract:
A taxonomic revision and phylogenetic analysis were completed for Dasyloricaria. The genus includes three valid species: D. filamentosa and D. latiura previously included in the genus, and a new species described herein. Dasyloricaria have a restricted trans-Andean distribution, with D. filamentosa occurring at the lower and middle Magdalena, lower Cauca, and
Sinu in Colombia, and lago Maracaibo basin in Colombia and Venezuela; D. latiura in the Atrato and the Tuyra basins in Colombia and Panama, respectively; and the new species in the upper and middle Magdalena basin in Colombia. New synonyms for D. filamentosa and D. latiura are proposed, and a lectotype is designated for the latter. Dasyloricaria is herein
recognized as monophyletic, with D. filamentosa as the sister group of D. latiura, and the new species as sister to that clade. Spatuloricaria is hypothesized to be the sister group of Dasyloricaria based on synapomorphies of the neurocranium, branchial arches and external morphology features. The subtribe Rineloricariina was partially corroborated through the phylogenetic analysis. An identification key for the species of Dasyloricaria is provided.


Quelle:
Neotropical Ichthyology, 14(1): e150120, 2016 Journal homepage: www.scielo.br/ni
DOI: 10.1590/1982-0224-20150120