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

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. ipatin...

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Bibliographic Details
Published in:PloS one 2022-12, Vol.17 (12), p.e0261027-e0261027
Main Authors: Santos de Lucena, Carlos A, Kullander, Sven, Norén, Michael, Calegari, Bárbara
Format: Article
Language:English
Subjects:
Analysis
Animals
Biological diversity
Biology and Life Sciences
Brazil
Cichlasomatinae
Cichlidae
Cichlids
Coastal morphology
Coasts
Computer and Information Sciences
Diversity of life
Earth Sciences
Ecology and Environmental Sciences
Genetic analysis
Ichthyology
Identification and classification
Livets mångfald
Medicine and Health Sciences
Morphology
Neotropical ichthyology
New species
People and places
Phylogenetics
Phylogeny
Rivers
South America
Species delimitation
Species diversity
Tributaries
Uruguay
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Summary: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.
ISSN:1932-6203
1932-6203
DOI:10.1371/journal.pone.0261027