Vertebrate Zoology 60(2): 139-146, doi:

Heros acaroides HENSEL, 1870 - a valid species of Australoheros (Teleostei: Perciformes: Cichlidae) from the Patos-Mirim lagoon system, south Brazil

Ingo Schindler, Felipe P. Ottoni, Morevy M. Cheffe

Corresponding author: Ingo Schindler ( ingoschindler@web.de )

This is an open access article distributed under the terms of the Creative Commons Attribution License (CC BY 4.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Citation: Schindler I, Ottoni FP, Cheffe MM (2010) Heros acaroides HENSEL, 1870 - a valid species of Australoheros (Teleostei: Perciformes: Cichlidae) from the Patos-Mirim lagoon system, south Brazil. Vertebrate Zoology 60(2): 139-146

Abstract

Heros acaroides Hensel, 1870 is resurrected from synonymy of Chromis facetus Jenyns, 1842 (currently known as Australoheros facetus) and re-described on the basis of its type series and fresh material, collected in the vicinity of its type locality (Porto Alegre, Rio Grande de Sul, Brazil). A lectotype is designated. It differs from Australoheros facetus by its mouth shape (jaws subequal versus lower jaw projecting over upper jaw; comparative thick lips versus thin lips) and smaller scales on cheeks (cheek scale rows 4 or usually 5 vs. usually 3 in A. facetus). It differs from A. taura (a species occurring in the same drainage) by the presence of a conspicuous midlateral stripe, a well developed caudal fin base spot (vs. no prominent spot in A. taura) and by a higher body depth (42.7 – 49.0 % SL versus 40.1 – 42.4 % of SL in A. taura).

Keywords

Systematic, ichthyology, Cichlasomatini, Australoheros acaroides, lectotype, Australoheros facetus, Rio Grande de Sul, Brazil.