A new species of Rhinopetitia Géry 1964 (Ostariophysi: Characiformes: Characidae) from the Rio Teles Pires,Rio Tapajós basin,Brazil |
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| Authors: | A L Netto‐Ferreira J L O Birindelli L M Sousa N A Menezes |
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| Institution: | 1. Instituto de Ciências Biológicas, Universidade Federal do Pará, , PA, Brazil;2. Departamento de Biologia Animal e Vegetal, Universidade Estadual de Londrina, , 86057–970 Londrina, PR, Brazil;3. Universidade Federal do Pará, campus Universitário de Altamira, Faculdade de Ciências Biológicas, , 68372–040 Altamira, PA, Brazil |
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| Abstract: | A new species of Rhinopetitia is described from the Rio Teles Pires, a major tributary of the Rio Tapajós. The new taxon is distinguished from its only congener, Rhinopetitia myersi, by having all premaxillary teeth in both rows with seven to nine cusps, maxillary teeth with seven or eight cusps, a distinct dark midlateral stripe on the body and a round humeral blotch (v. outer series of premaxillary teeth with three cusps and inner series of premaxillary teeth with three to five cusps, maxillary teeth with three to five cusps, the absence of a dark midlateral stripe and humeral blotch). Putative characters suggesting a close relationship between Rhinopetitia, Bryconacidnus, Ceratobranchia, Monotocheirodon, Odontostoechus, Othonocheirodus and Rhinobrycon are presented. This putative clade is included in the Stevardiinae, a monophyletic group within the Characidae. |
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| Keywords: | dentition pattern freshwater neotropical systematics |
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