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vol.15 número3Description of a new species of Pareiorhaphis (Loricariidae: Neoplecostominae) from the rio Jequitinhonha basin, Minas Gerais, eastern BrazilA new species of Bryconamericus (Characidae: Stevardiinae: Diapomini) from the upper rio Paraná basin, Brazil índice de autoresíndice de assuntospesquisa de artigos
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Neotropical Ichthyology

versão impressa ISSN 1679-6225versão On-line ISSN 1982-0224

Resumo

SOARES, Isabel M.; BERTACO, Vinicius A.; ITO, Priscila Madoka M.  e  ZUANON, Jansen. A new species of Boehlkea (Characiformes: Characidae: Stevardiinae) from the rio Japurá, Amazon basin, Brazil. Neotrop. ichthyol. [online]. 2017, vol.15, n.3, e170026.  Epub 28-Set-2017. ISSN 1982-0224.  https://doi.org/10.1590/1982-0224-20170026.

A new species of Boehlkea is described from rio Japurá, Amazon basin. The new species differs from B. fredcochui by the presence of a vertically elongate humeral spot (vs. absence), complete lateral line (vs. incomplete), four rows of scales below lateral line (vs. three), and lower number of branched anal-fin rays (17-21 vs. 22-25), and from B. orcesi by the higher number of maxillary teeth (13-14 vs. 5-12), greater head length (27.9-29.9% vs. 24.3-27.5% of SL), and by the color pattern (basal half of dorsal-fin, distal portion of pelvic-fin, lower caudal-fin lobe and anal-fin with black chromatophores vs. absence of black chromatophores in the fins).

Palavras-chave : Characidae “Clade A”; Color pattern; Hemibrycon; Lateral line length; Taxonomy.

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