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

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).

Two new species of Australoheros (Teleostei: Cichlidae), with notes on diversity of the genus and biogeography of the Río de la Plata basin

“…The identity of four nominal species, treated variously as synonyms of A. facetus, has variously been adressed in studies focusing on species from the Atlantic coast drainages. One of these names, Heros jenynsii Steindachner from Montevideo has been synonymized with A. facetus (Schindler et al, 2010). Another available name is Heros acaroides Hensel from Porto Alegre, Brasil.…”

Three new species of Australoheros from southeastern Brazil, with taxonomic notes on Chromys oblonga, Heros autochton and H. jenynsii (Teleostei: Labrodei: Cichlidae)

“…Subsequently, several species have been described, currently the genus comprising 24 valid species, making Australoheros one of the Cichlinae genera with the highest species diversity. At the present, besides occurring in the Paraná-Paraguay-Uruguay river system of southern Brazil, Uruguay and northeastern Argentina, species of Australoheros are also recorded to several coastal basins between Bahia, northeastern Brazil, and northeastern Argentina, and to the São Francisco and upper Paraná drainages, of Brazil (ottoni, 2010;ottoni & costa, 2008;Rícan &KullandeR, 2006 andRícan &KullandeR, 2008). Rícan & KullandeR (2008) tentatively divided Australoheros into four species groups restricted to the Paraná-Paraguay-Uruguay river system on the basis of morphological and molecular data: the A. scitulus group, including A. scitulus and A. charrua Rícan & KullandeR, 2008; the A. forquilha group, including A. forquilha Rícan & KullandeR, 2008 and A. tembe; the A. facetus group, including A. facetus and A. guarani Rícan & KullandeR, 2008;and the A. kaaygua group, including A. kaaygua casciotta et al, 2006and A. minuano Rícan & KullandeR, 2008.…”

“…Australoheros Rícan & KullandeR, 2006 was recently erected to include three species: Cichlasoma facetum Jenyns, 1842, C. tembe casciotta, toResani, 1995 andC. scitulus Rícan &KullandeR, 2003, all from the Paraná-Paraguay-Uruguay river system, in northeastern Argentina, southern Brazil and Uruguay (casciotta et al, 1995;2006;ottoni, 2010;ottoni & costa, 2008;ottoni & cheffe, 2009;ottoni et al, 2008;Rícan &KullandeR, 2006 andRícan &KullandeR, 2008). Subsequently, several species have been described, currently the genus comprising 24 valid species, making Australoheros one of the Cichlinae genera with the highest species diversity.…”

Australoheros perdi, new species (Teleostei: Labroidei: Cichlidae) from the lacustrine region of the Doce River Valley, southeastern Brazil, with biological information

“…There are three other valid names for the genus Australoheros, placed as junior synonyms of A. facetus: Chromys oblonga, from the rio Tocantins, in Goiás state, Brazil; Heros jenynsii Steindachner, 1869, from Montevideo, Uruguay; and Heros autochton, from Brazil without any precise locality (Rícan & Kullander, 2003;Kullander, 2003;Rícan & Kullander, 2008;Schindler et al, 2010).…”