Review of species of the Astyanax bimaculatus “caudal peduncle spot” &lt;br /&gt;subgroup sensu Garutti &amp;amp; Langeani (Characiformes, Characidae) from the rio La Plata and rio São Francisco drainages and coastal systems of southern Brazil and Uruguay

descriptionPublicationkeyboard_double_arrow_right Article 28 Jan 2016Publisher:Magnolia PressJournal:Zootaxa, volume 4,072 (issn: 1175-5326, eissn: 1175-5334,

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Authors: Carlos Alberto S De, Lucena; Helena Gouvea, Soares;

doi: 10.11646/zootaxa.4072.1.5

pmid: 27395912

Review of species of the Astyanax bimaculatus “caudal peduncle spot” <br />subgroup sensu Garutti & Langeani (Characiformes, Characidae) from the rio La Plata and rio São Francisco drainages and coastal systems of southern Brazil and Uruguay

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Abstract

The species of the Astyanax bimaculatus 'caudal peduncle spot' subgroup of the drainages of the rios La Plata and São Francisco, as well as southeastern coastal systems of Brazil and Uruguay, are revised. Two nominal species are considered valid and are redescribed: Astyanax lacustris and A. abramis. Astyanax jacuhiensis, A. asuncionensis and A. altiparanae are recognized as new junior synonyms of A. lacustris. Bertoniolus paraguayensisis recognized as a new junior synonym of A. abramis. The names Astyanax orbignyanus, A. vittatus, and A. borealis are considered species inquirendae. Notes on A. maculisquamis, included in the 'caudal peduncle spot' subgroup from rio Guaporé (rio Madeira drainage), and Astyanax bahiensis from Bahia, mistakenly considered of the same subgroup, are presented.

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Pontifical Catholic University of Rio de Janeiro
Brazil

Keywords

Male, Rivers, Characidae, Animals, Uruguay, Animal Distribution, Brazil

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