Marinho, M. M. F.Langeani, Francisco [UNESP]2014-05-202014-05-202010-09-01Journal of Fish Biology. Malden: Wiley-blackwell, v. 77, n. 4, p. 879-889, 2010.0022-1112http://hdl.handle.net/11449/40731A new species of Characidae, Moenkhausia celibela, is described from the Rio Amazonas at Santarem, Rio Marau, several localities in the Rio Tapajos, Rio Curua-Una, Rio Xingu and Rio Jari, all from the Amazon basin, Brazil. The new species is distinguished from its congeners, except species included in Gery's 1992 Moenkhausia lepidura group, by presenting a dark blotch on the upper caudal-fin lobe, and the lower lobe is hyaline or light grey. Moenkhausia celibela is distinguished from the species of the M. lepidura group by the absence of a humeral spot and the presence of a roughly triangular and dark spot at the caudal-fin base, extending posteriorly along the middle caudal-fin rays, and distinctly separate from the spot on the upper caudal-fin lobe.879-889engFresh waterMoenkhausia lepiduraNeotropicSouth AmericanResumo10.1111/j.1095-8649.2010.02719.xWOS:000281713700006Acesso restrito4433495820388025