Conjectures and refutations: Species diversity and phylogeny of Australoheros from coastal rivers of southern South America (Teleostei: Cichlidae)

Carlos A Santos de Lucena; Sven Kullander; Michael Norén; Bárbara Calegari

doi:10.1371/journal.pone.0261027

Conjectures and refutations: Species diversity and phylogeny of Australoheros from coastal rivers of southern South America (Teleostei: Cichlidae)

PLoS One. 2022 Dec 9;17(12):e0261027. doi: 10.1371/journal.pone.0261027. eCollection 2022.

Authors

Carlos A Santos de Lucena¹, Sven Kullander², Michael Norén², Bárbara Calegari^{1

3}

Affiliations

¹ Laboratório de Ictiologia, Museu de Ciências e Tecnologia da Pontifícia Universidade Católica dRio Grande do Sul, Porto Alegre, Rio Grande do Sul, Brazil.
² Department of Zoology, Swedish Museum of Natural History, Stockholm, Sweden.
³ Department of Vertebrate Zoology, National Museum of Natural History, Smithsonian Institution, Washington, DC, United States of America.

Abstract

Morphological and genetic analyses of species of Australoheros focusing on those distributed in coastal rivers from the Rio de La Plata north to the Rio Buranhém, support recognition of 17 valid species in the genus. Eight species are represented in coastal rivers: A acaroides, A. facetus, A. ipatinguensis, A. oblongus, A. ribeirae, and A. sanguineus are validated from earlier descriptions. Australoheros mboapari is a new species from the Rio Taquari in the Rio Jacuí drainage. Australoheros ricani is a new species from the upper Rio Jacuí. Specimens from the Rio Yaguarón and Rio Tacuary, affluents of Laguna Merín, and tributaries of the Rio Negro, tributary of the Rio Uruguay are assigned to A. minuano pending critical data on specimens from the type locality of A. minuano. Australoheros taura is a junior synonym of A. acaroides. Australoheros autrani, A. saquarema, A. capixaba, A. macaensis, A. perdi, and A. muriae are junior synonyms of A. ipatinguensis. Heros autochthon, A. mattosi, A. macacuensis, A. montanus, A. tavaresi, A. paraibae, and A. barbosae, are junior synonyms of A. oblongus. Heros jenynsii is a junior synonym of A. facetus.

Copyright: © 2022 Santos de Lucena et al. This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Animals
Brazil
Cichlids*
Phylogeny
Rivers
South America
Uruguay

Grants and funding

Financial support was provided to CAS by The Coordenação de Aperfeiçoamento de Pessoal de Nível Superior(CAPES, https://www.gov.br/capes/pt-br) ao Auxílio financeiro to CASL, including a grant as visiting scientist to SOK, Grant number CSF-PVE-S 0751/2014 Processo: 88881.030373/2013-01. The funder had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript.