Data/hora: 01/06/2024 00:30:05

Provedor de dados: | Neotropical Ichthyology
País: | Brazil
Título: | A new species of Hemibrycon (Teleostei: Characiformes: Characidae) from the río Ucayali drainage, Sierra del Divisor, Peru
Autores: | Bertaco,Vinicius A.; Malabarba,Luiz R.; Hidalgo,Max; Ortega,Hernán.
Data: | 2007-09-01
Ano: | 2007
Palavras-chave: | Neotropical; Amazon basin; Taxonomy; Supraorbital; Fin hooks; Carlastyanax.
Resumo: | A new characid species, Hemibrycon divisorensis, is described from the río Ucayali drainage, Loreto, Peru. The new species is distinguished from all Hemibrycon species by the presence of a wide black asymmetrical spot covering base of caudal-fin rays and extending along entire length of caudal-fin rays 9 to 12-13 (except from H. surinamensis), and a black band in the lower half of the caudal peduncle extending from the region above the last anal-fin rays to the caudal-fin base. Furthermore, it is distinguished from most species of the genus by the number of scale rows below the lateral line (4-5 vs 5-9), except H. jabonero, H. microformaa, H. orcesi, and H. surinamensis. It differs from these species by scale and fin ray counts and color pattern. The lack of a supraorbital in Hemibrycon species is discussed and confirmed.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000300003
Editor: | Sociedade Brasileira de Ictiologia
Relação: | 10.1590/S1679-62252007000300003
Formato: | text/html
Fonte: | Neotropical Ichthyology  v.5 n.3 2007
Fonte: | info:eu-repo/semantics/openAccess