Hemigrammus ataktos: a new species from the rio Tocantins basin, central Brazil (Characiformes: Characidae)

Author(s)

Manoela M. F. Marinho ^[1] ; Fernando C. P. Dagosta ^[1] ; José L. O. Birindelli ^[3]

Affiliation

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

^[2] Universidade Estadual de Londrina. Departamento de Biologia Animal e Vegetal - Brasil

• Document type: Journal article
• Source: Neotropical Ichthyology; v. 12, n. 2, p. 257-264, 2014-06-00.

Abstract

A new species of Hemigrammus is described from the middle rio Tocantins basin, central Brazil. The new species can be distinguished from all congeners by having a black midlateral stripe on the body extending from the posterior margin of the eye to the median caudal-fin rays. Mature males possess dorsal-, pelvic-, and anal-fin rays elongate, features that also help to recognize the new species. Although the new species is described in Hemigrammus, some specimens present a complete series of pored scales in the lateral line. A discussion about the generic allocation of the new species is presented. (AU)

• 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: 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: 09/15075-0 - Phylogenetic relationships and taxonomic revision of the species of Copella Myers, 1956 (Characiformes: Lebiasinidae)
• Grantee: Manoela Maria Marinho Koh
• Support Opportunities: Scholarships in Brazil - Doctorate