Data/hora: 05/06/2024 18:03:12

Provedor de dados: | 83
País: | Brazil
Título: | A new species of Astyanax (Ostariophysi: Characidae) from the headwaters of the arheic Río Sucuma, Catamarca, Northwestern Argentina
Autores: | Terán,Guillermo E.; Butí,Cristina I.; Mirande,J. Marcos.
Data: | 2017-01-01
Ano: | 2017
Palavras-chave: | Arheic system; Characiformes; Cryptic species; Endemic species; Phylogeny.
Resumo: | ABSTRACT A new species of Astyanax is described from the arheic system of Río Sucuma, in Catamarca, Northwestern Argentina. The new species is distinguished from its congeners by a combination of characters including the presence of a broad vertical humeral spot, absence of maxillary teeth, and absence of circuli in posterior field of scales. Furthermore, this species is distinguished by the orbital diameter, head length, branched anal-fin rays, perforated lateral-line scales, transverse scales, dentary teeth with abrupt decrease in size. This species is, to date, the single known fish endemic of Río Sucuma basin.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252017000200209
Editor: | Sociedade Brasileira de Ictiologia
Relação: | 10.1590/1982-0224-20160165
Formato: | text/html
Fonte: | Neotropical Ichthyology  v.15 n.2 2017
Fonte: | info:eu-repo/semantics/openAccess