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18 December 2012 A New Species of Potamorrhaphis (Beloniformes: Belonidae) from the Amazon Basin
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Abstract
A new species of Potamorrhaphis is described from the Amazon basin in Brazil and Peru. Potamorrhaphis labiatus, new species, is distinguished from P. guianensis and P. eigenmanni by having the posterior third of the labial membrane highly expanded laterally, reaching to or passing the level of the ventral margin of the maxilla when folded ventrally, and from P. petersi by having fewer dorsal- and anal-fin rays and a deeper caudal peduncle. A key for the species of Potamorrhaphis is provided.Uma nova espécie de Potamorrhaphis é descrita da bacia do rio Amazonas no Brasil e no Peru. Potamorrhaphis labiatus n. sp. se distingue de P. guianensis e P. eigenmanni por ter o terço posterior da membrana labial fortemente expandida lateralmente, alcançando ou ultrapassando o nível da margem ventral da maxila quando virada para baixo, e de P. petersi pelo menor número de raios nas nadadeiras dorsal e anal e pelo pedúnculo caudal mais alto. Uma chave de identificação para as espécies de Potamorrhaphis é fornecida.
2012 by the American Society of Ichthyologists and Herpetologists
Vivianne B. Sant'Anna, Maria Laura S. Delapieve and Roberto E. Reis "A New Species of Potamorrhaphis (Beloniformes: Belonidae) from the Amazon Basin," Copeia 2012(4), (18 December 2012). https://doi.org/10.1643/CI-12-032
Received: 5 March 2012; Accepted: 1 July 2012; Published: 18 December 2012
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