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• Neotrop. ichthyol. 7 (2) • June 2009 • https://doi.org/10.1590/S1679-62252009000200006 linkcopy

Open-access Astyanax ajuricaba: a new species from the Amazon basin in Brazil (Characiformes: Characidae)

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    Abstracts

    A new Astyanax species is described from several localities in the rio Negro, rio Solimões and lower rio Tapajós basins, Amazon basin, Brazil. The new species is distinguished from all remaining characids by its unique color pattern consisting of the combination of presence of a conspicuous, narrow dark midlateral stripe, a well-developed vertically-elongated dark humeral spot, and upper caudal-fin lobe and middle caudal-fin rays dark, with a rounded clear ocellated spot present at anterior third of caudal-fin lobe.

    Rio Negro; Rio Tapajós; Moenkhausia lepidura species-group; Caudal-fin ocellated spot

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    Sociedade Brasileira de Ictiologia Neotropical Ichthyology, Departamento de Biologia Animal e Vegetal, CCB, Universidade Estadual de Londrina, Rodovia Celso Garcia Cid, Km 380, Cidade Universitária, 86055-900, Londrina, Paraná, Brazil, Phone +55(43)3371-5151 - Londrina - PR - Brazil
    E-mail: neoichth@nupelia.uem.br
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