A new species of Hyphessobrycon Durbin (Characiformes: Characidae) from the middle rio São Francisco and upper and middle rio Tocantins basins, Brazil, with comments on its biogeographic history

Author(s)

Fernando C. P. Dagosta ^[1] ; Manoela M. F. Marinho ^{[1, 2]} ; Priscila Camelier ^[1]

Affiliation

^[1] Univ Sao Paulo, Museu Zool, BR-04218970 Sao Paulo - Brazil

^[2] Univ Estadual Paulista, UNESP, Inst Biociencias Letras & Ciencias Exatas, BR-15054000 Sao Jose Do Rio Preto, SP - Brazil

• Document type: Journal article
• Source: Neotropical Ichthyology; v. 12, n. 2, p. 365-375, 2014-06-00.

Abstract

A new species of Hyphessobrycon Durbin is described from tributaries of the rio Grande (rio São Francisco basin) draining east to the Serra Geral de Goiás, of the rio São Domingos (upper rio Tocantins basin) and rio do Sono basins (middle rio Tocantins basin). Hyphessobrycondiastatos can be diagnosed from its congeners by the absence of humeral spot, 15-18 branched anal-fin 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. (AU)

• FAPESP's process: 11/50282-7 - An inventory of the Characiform fish fauna (Teleostei, Ostariophysi) from South America
• Grantee: Naercio Aquino Menezes
• Support Opportunities: BIOTA-FAPESP Program - Thematic Grants
• FAPESP's process: 11/23419-1 - Biogeographic history of the fishes from the Amazon Basin: a methodological comparative approach
• Grantee: Fernando Cesar Paiva Dagosta
• Support Opportunities: Scholarships in Brazil - Doctorate
• FAPESP's process: 12/00840-6 - Speciation and biogeography in the genera Glandulocauda Eigenmann and Mimagoniates Regan (Characiformes: Characidae: Glandulocaudinae)
• Grantee: Priscila Camelier de Assis Cardoso
• Support Opportunities: Scholarships in Brazil - Doctorate