A new species of Characidium Reinhardt (Characiformes: Crenuchidae) from the Rio Huallaga, central Peruvian Amazon, with a review of secondary sexual characters in the genus

Autor(es)

Teixeira, Tulio F. ^[1] ; Melo, Marcelo R. S. ^[2]

Afiliação do(s) autor(es)

^[1] Pontificia Univ Catolica Minas Gerais, Programa Posgrad Biol Vertebrados, Belo Horizonte, MG - Brazil

^[2] Univ Sao Paulo, Inst Oceanog, Sao Paulo - Brazil

• Tipo de documento: Artigo de Revisão
• Fonte: Journal of Fish Biology; v. 98, n. 1 OCT 2020.
• Citações Web of Science: 1

Resumo

Characidium pumarinri n. sp. is described from the affluents of Rio Huallaga, a tributary of Rio Maranon that drains the eastern slopes of the Andes, in the Peruvian Amazon. The new species has a deep body (24-31% in L-S), 11-17 well-marked dark bars and remarkable sexual dimorphism related to colour pattern, in which males have darker anal, dorsal, pectoral and pelvic fins than females. C. pumarinri resembles some species allocated in Clade C4, mainly by having a high number of transversal bars and a deep body. In addition, a thorough review and further descriptions of the secondary sexual characteristics in Characidium are provided. (AU)

• Processo FAPESP: 12/01263-2 - Evolução dos caracteres sexuais secundários em Characidae (Teleostei: Characiformes)
• Beneficiário: Tulio Franco Teixeira
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 17/12909-4 - Diversidade e evolução de peixes de oceano profundo: DEEP-OCEAN
• Beneficiário: Marcelo Roberto Souto de Melo
• Modalidade de apoio: Auxílio à Pesquisa - Programa BIOTA - Jovens Pesquisadores