Data/hora: 17/06/2024 21:02:59

Provedor de dados: | 83
País: | Brazil
Título: | Two new species of Corydoras Lacépède, 1803 (Siluriformes: Callichthyidae) from the rio Madeira basin, Brazil
Autores: | Tencatt,Luiz Fernando Caserta; Ohara,Willian Massaharu.
Data: | 2016-01-01
Ano: | 2016
Palavras-chave: | Amazon; Corydoradinae; Mato Grosso; Rio Aripuanã; Taxonomy.
Resumo: | Abstract Two new species of Corydoras are described from the rio Madeira basin, Brazil. The intermediate long-snouted new species can be distinguished from its congeners by presenting the following combination of features: posterior margin of dorsal-fin spine with laminar serrations directed towards the origin of the spine; presence of two longitudinal black stripes on flanks; anterior portion of dorsal fin with sparse black chromatophores, not forming any conspicuous pattern; absence of a conspicuous black marbled coloration pattern on head; black spots on caudal fin, some spots arranged, forming transversal bars; and brownish dorsal-fin spine. The short-snouted new speciescan be distinguished from its congeners by the following combination of features: short mesethmoid; posterior laminar expansion of infraorbital 2 very reduced, not in contact with compound pterotic; two or three longitudinal black stripes on flanks; absence of an oblique or vertical black blotch across the eye; anterior portion of dorsal fin with sparse black chromatophores, not forming any conspicuous pattern; and ventral surface of trunk naked or covered by sparse platelets.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000100208
Editor: | Sociedade Brasileira de Ictiologia
Relação: | 10.1590/1982-0224-20150063
Formato: | text/html
Fonte: | Neotropical Ichthyology  v.14 n.1 2016
Fonte: | info:eu-repo/semantics/openAccess