Artículos de revistas
A new species of Hyphessobrycon Durbin (Characiformes: Characidae) from the middle rio Sao Francisco and upper and middle rio Tocantins basins, Brazil, with comments on its biogeographic history
Fecha
2014-04-01Registro en:
Neotropical Ichthyology. Sao Paulo: Soc Brasileira Ictiologia, v. 12, n. 2, p. 365-375, 2014.
1679-6225
10.1590/1982-0224-20130179
S1679-62252014000200365
WOS:000347909200015
S1679-62252014000200365.pdf
Autor
Universidade de São Paulo (USP)
Universidade Estadual Paulista (Unesp)
Institución
Resumen
A new species of Hyphessobrycon Durbin is described from tributaries of the rio Grande (rio Sao Francisco basin) draining east to the Serra Geral de Goias, of the rio Sao Domingos (upper rio Tocantins basin) and rio do Sono basins (middle rio Tocantins basin). Hyphessobrycon diastatos can be diagnosed from its congeners by the absence of humeral spot, 15-18 branched analfin rays, 1-3 maxillary conical to tricuspid teeth, a relatively well-defined dark caudal-peduncle spot, and elongation of dorsal- and anal-fin rays in mature males. The biogeographical significance of the distribution of the new species is evaluated and discussed.