A new species of the Neotropical loricariid Hypostomus cochliodon group (Hypostominae) from the lower Rio Tapajós basin,Brazilian Amazon |
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| Authors: | Renildo R de Oliveira Frank R V Ribeiro André L C Canto Cláudio H Zawadzki |
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| Institution: | 1. Coordenação de Biodiversidade, Coleção de Peixes, Instituto Nacional de Pesquisas da Amazônia, Manaus, Brazil;2. Instituto de Ciências e Tecnologia das Águas, Universidade Federal do Oeste do Pará, Santarém, Brazil;3. Departamento de Biologia, Núcleo de Pesquisas em Limnologia, Universidade Estadual de Maringá, Maringá, Brazil |
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| Abstract: | A new species of Hypostomus with spoon-shaped teeth is described from the Rio Cupari basin, a right margin affluent of the lower Rio Tapajós, Pará State, Brazil. The new species inhabits rocky bottom areas in the main channel of Rio Cupari and its tributaries. The new species can be distinguished from all its congeners, except from the Hypostomus cochliodon group, by having six to eight spoon-shaped teeth, dentaries angled at less than 80° and the absence of a notch between the hyomandibular and the metapterygoid. The new species is distinguished from all species of the H. cochliodon group by its unique colour pattern, containing dark vermiculations on head and anterior portion of the trunk, and by the absence of medial buccal papillae. |
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| Keywords: | Amazon fishes armoured catfish biodiversity taxonomy wood-eating |
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