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Neotropical Ichthyology

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

Abstract

ZAWADZKI, Claudio H.; TENCATT, Luiz F. C.  and  FROEHLICH, Otávio. A new unicuspid-toothed species of HypostomusLacépède, 1803 (Siluriformes: Loricariidae) from the rio Paraguai basin. Neotrop. ichthyol. [online]. 2014, vol.12, n.1, pp.97-104. ISSN 1679-6225.  http://dx.doi.org/10.1590/S1679-62252014000100010.

A new unicuspid-toothed armored catfish species of Hypostomus is described from the Bodoquena Plateau, rio Paraguai basin, Mato Grosso do Sul State, Brazil. The new species is distinguished from its congeners, with exception of H. fonchii, by having unicuspid teeth (vs.bicuspid teeth); from H. fonchii it is distinguished by having median series of lateral plates with 26-27 (vs. 28); by lower number of premaxillary and dentary teeth (7-10 vs. 18-21; 8-13 vs. 18-25, respectively); for possessing more depressed head (head depth 15.8-18.1% SL vs. 19.1-22.0% SL); and by the presence of median buccal papilla (vs. absence).

Keywords : Armored catfish; Bodoquena Plateau; Cascudo; Hypostominae; Taxonomy.

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