A new species of Brachychalcinus (Characiformes: Characidae) from the rio Xingu basin, Serra do Cachimbo, Brazil

Author(s)

Garcia-Ayala, James R. ^[1] ; Ohara, Willian M. ^[2] ; Pastana, Murilo N. L. ^[2] ; Benine, Ricardo C. ^[1]

Affiliation

^[1] UNESP, IBB, Dept Zool, Lab Ictiol, Campus Botucatu, BR-18618970 Botucatu, SP - Brazil

^[2] Univ Sao Paulo, Museu Zool, Av Nazare 481, Caixa Postal 42494, BR-04299970 Sao Paulo, SP - Brazil

• Document type: Journal article
• Source: Zootaxa; v. 4362, n. 4, p. 564-574, DEC 7 2017.
• Web of Science Citations: 2

Abstract

Brachychalcinus reisi, a new species of characid fish, is described from the rio Curua, tributary of rio Iriri, rio Xingu basin, Serra do Cachimbo, Para State, Brazil. The new species can be distinguished from its congeners by the presence of a series of longitudinal black wavy stripes on the entire body and by a lower number of longitudinal scale rows between dorsalfin origin and lateral line (7-8 vs. 8-12). Additionally, the new species differs from B. copei, B. parnaibae, and B. retrospina by the lower number of branched dorsal-fin rays (9 vs. 10). This is the first description of a new species of the subfamily since the revisionary study of Stethaprioninae, published almost 30 years ago. (AU)

• FAPESP's process: 14/26508-3 - Phylogeny of the hyperdiverse order Characiformes (Teleostei: Ostariophysi) using ultraconserved elements
• Grantee: Claudio de Oliveira
• Support Opportunities: Research Projects - Thematic Grants