Description of a new species of Pareiorhina (Siluriformes: Loricariidae) from the rio Sao Francisco basin, Brazil
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Data
2016-05-03
Autores
Silva, Gabriel S. C. [UNESP]
Roxo, Fabio F. [UNESP]
Oyakawa, Osvaldo T.
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Editor
Magnolia Press
Resumo
In the present paper we describe a new species of Pareiorhina from Minas Gerais State, Brazil. The new species is distinguished from its congeners by a combination of the following characters: the dorsal surface of caudal peduncle strongly concave, 30 vertebrae, bicuspid teeth, a conspicuous cylindrical shaped papilla between the oral valve and premaxilla, smaller odontodes along the snout margin, a small orbital diameter, a higher head width, a shorter interorbital width, a shorter predorsal length, a shorter cleithral width, and a shorter caudal peduncle depth. The new species is known from four small streams of the rio Sao Francisco basin: one tributary of the rio Maranhao, one tributary of the rio Paraopeba and two tributaries of the Rio das Velhas. This species is found in fast-flowing streams associated with rocks and sand in the bottom of the rivers.
Descrição
Palavras-chave
Cascudinhos, Fresh-Water, Neoplecostominae, Neotropical Fish, Taxonomy
Como citar
Zootaxa. Auckland: Magnolia Press, v. 4107, n. 3, p. 381-391, 2016.