Apareiodon species from the Rio Tocantins-Araguaia basin, Brazil, were investigated to determine the recognizable species in that basin. Apareiodon machrisi Travassos, 1957, the only previously described species reported for the Rio Tocantins-Araguaia basin, is recognized as valid, and three new species inhabiting primarily headwater streams are described (Apareiodon argenteus, Apareiodon cavalcante, and Apareiodon tigrinus). The species are diagnosed based on aspects of coloration and morphology. Diagnoses and keys to the species are provided.
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1 June 2003
Apareiodon (Teleostei, Characiformes), from the Tocantins-Araguaia Basin, with Description of Three New Species
Carla Simone Pavanelli,
Heraldo Antonio Britski
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