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(Reference retrieved automatically from SciELO through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

A new species of Astyanax (Characiformes: Characidae) from the rio de Contas basin, Bahia, Brazil

Full text
Author(s):
Angela Maria Zanata ; Rafael Burger ; George Vita ; Priscila Camelier
Total Authors: 4
Document type: Journal article
Source: Neotropical Ichthyology; v. 17, n. 3, p. -, 2019.
Web of Science Citations: 0
Abstract

ABSTRACT A new species of Astyanax from tributaries of the rio de Contas, Bahia, Brazil, is described. The new species differs from congeners by having three horizontal series of scales from lateral line to pelvic-fin origin and the distal margin of third infraorbital distinctly separated from vertical and horizontal limbs of preopercle, leaving a broad area not covered by superficial bones. The new species further differs from most congeners by the presence of bony hooks on all fins of mature males. Particularly from congeners occurring in rivers of the Northeastern Mata Atlântica freshwater ecoregion, it further differs by having the highest body depth just anterior to the dorsal-fin origin, 34-37 pored lateral line scales, a vertically elongated conspicuous dark humeral blotch reaching below the lateral line and a conspicuous dark wide midlateral stripe extending from the clear area on the rear of the humeral blotch to the end of middle caudal-fin rays and forming an inconspicuous blotch on caudal peduncle. (AU)

FAPESP's process: 17/09321-5 - Miniature Characiformes (Teleostei: Ostariophysi): evolution, diversity and biogeography
Grantee:Manoela Maria Marinho Koh
Support type: BIOTA-FAPESP Program - Young Investigators Grants
FAPESP's process: 16/19075-9 - Diversity and evolution of Gymnotiformes (Teleostei, Ostariophysi)
Grantee:Naercio Aquino Menezes
Support type: Research Projects - Thematic Grants