Hyphessobrycon heliacus: A New Characid Fish (Ostariophysi: Characiformes) from the Upper Rio Tapajós Basin, Central Brazil

Cristiano R. Moreira; Maria Isabel Landim; Wilson J. E M. Costa

doi:10.1643/0045-8511(2002)002[0428:HHANCF]2.0.CO;2

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Cristiano R. Moreira,¹ Maria Isabel Landim,¹ Wilson J. E M. Costa¹

¹(CRM) Seção de Peixes, Museu de Zoologia da Universidade de São Paulo, Caixa Postal 42594, São Paulo, São Paulo, CEP 04299–970, Brazil; (MIL) Departamento de Vertebrados, Museu Nacional, Quinta da Boa Vista, 20940-040, Rio de Janeiro, Brazil; and (WJ

Abstract

Hyphessobrycon heliacus n. sp. is described from the upper rio Tapajós basin, Mato Grosso, Brazil. The new species is distinguished from other currently recognized Hyphessobrycon species by the combination of an enlarged caudal spot, the golden body coloration in life, the elongate filamentous dorsal and pelvic fins, thickened anal fin rays, and the absence of anal fin lobe. These last three characteristics are present only in mature males.

The American Society of Ichthyologists and Herpetologists

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Cristiano R. Moreira, Maria Isabel Landim, and Wilson J. E M. Costa "Hyphessobrycon heliacus: A New Characid Fish (Ostariophysi: Characiformes) from the Upper Rio Tapajós Basin, Central Brazil," Copeia 2002(2), 428-432, (1 May 2002). https://doi.org/10.1643/0045-8511(2002)002[0428:HHANCF]2.0.CO;2

Received: 2 February 2001; Accepted: 28 September 2001; Published: 1 May 2002

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