Please use this identifier to cite or link to this item:
https://repositorio.ufba.br/handle/ri/5162
metadata.dc.type: | Artigo de Periódico |
Title: | Astyanax vermilion and Astyanax burgerai: new characid fishes (Ostariophysi: Characiformes) from Northeastern Bahia, Brazil |
Other Titles: | Neotropical Ichthyology |
Authors: | Zanata, Angela Maria Camelier, Priscila |
metadata.dc.creator: | Zanata, Angela Maria Camelier, Priscila |
Abstract: | Two new Astyanax species, A. vermilion, from rio Almada and rio Cachoeira, and A. burgerai, from rio Almada, Bahia State, Brazil, are described. Astyanax vermilion is distinguished from most of its congeners and from all other Astyanax species known from northeastern Brazilian drainages by having distal portion of pelvic fins dark, a combination of sexually dimorphic characters, posteroventral portion of body and fins (except pectoral) reddish in life, and inconspicuous humeral and caudal spots. It also differs by having highest body depth just anterior of dorsal-fin origin, 32-34 lateral-line scales, and presence of one or two maxillary teeth. Astyanax burgerai is diagnosed by the presence of two vertically elongated humeral blotches, absence of a conspicuous and broad dark midlateral stripe (at least on anterior half of body), body highest along vertical slightly behind midlength of pectoral fin, 31-34 lateral-line scales, and two or three teeth on premaxillary outer series. |
Keywords: | New species Sexual dimorphism Coastal drainages Characidae |
Publisher: | Neotropical Ichthyology |
URI: | http://www.repositorio.ufba.br/ri/handle/ri/5162 |
Issue Date: | 2009 |
Appears in Collections: | Artigo Publicado em Periódico (Biologia) |
Files in This Item:
File | Description | Size | Format | |
---|---|---|---|---|
OOOOOOOOOOOOOO.pdf | 475 kB | Adobe PDF | View/Open |
Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.