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vol.7 issue2Astyanax vermilion and Astyanax burgerai: new characid fishes (Ostariophysi: Characiformes) from Northeastern Bahia, BrazilParotocinclus arandai, a new species of hypoptopomatine catfish (Siluriformes: Loricariidae) from the upper rios Jucuruçu and Buranhém, States of Bahia and Minas Gerais, Brazil author indexsubject indexarticles search
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Neotropical Ichthyology

Print version ISSN 1679-6225On-line version ISSN 1982-0224


ALCARAZ, Héctor S. Vera; PAVANELLI, Carla S.  and  BERTACO, Vinicius A.. Astyanax jordanensis (Ostariophysi: Characidae), a new species from the rio Iguaçu basin, Paraná, Brazil. Neotrop. ichthyol. [online]. 2009, vol.7, n.2, pp.185-190. ISSN 1679-6225.

Astyanax jordanensis, new species, is described from the rio Jacu and rio das Torres, both tributaries to the lower rio Jordão, in the rio Iguaçu basin, Paraná, Brazil. The new species is a member of the A. scabripinnis species complex. Astyanax jordanensis differs from its congeners by several meristic and morphometric characters. Mature males possess bony hooks in the dorsal, pectoral, pelvic, and anal fins, and mature females have a few small bony hooks on the first rays of the anal fin. The presence of these bony hooks in females and the endemism of the ichthyofauna in the rio Jordão are discussed.

Keywords : Astyanax scabripinnis species complex; Endemism; Rio Jordão; Bony hooks.

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