Crenicichla chicha, a new species of pike cichlid (Teleostei: Cichlidae) from the rio Papagaio, upper rio Tapajós basin, Mato Grosso, Brazil

Autor(es)

Varella, Henrique R. ^[1] ; Kullander, Sven O. ^[2] ; Lima, Flavio C. T. ^[3]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Museu Zool, BR-04218970 Sao Paulo - Brazil

^[2] Swedish Museum Nat Hist, Dept Vertebrate Zool, SE-10405 Stockholm - Sweden

^[3] Univ Estadual Campinas Adao Jose Cardoso, Museu Zool, BR-13083970 Campinas, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Neotropical Ichthyology; v. 10, n. 2, p. 233-244, JUN 29 2012.
• Citações Web of Science: 12

Resumo

Crenicichla chicha, new species, occurs in clear, fast-running waters with rocky substrates in the rio Papagaio and tributaries. It is distinguished from all other Crenicichla species by the combination of two character states: infraorbitals 3 and 4 co-ossified (vs. separated) and 66-75 scales in the row immediately above to that containing the lower lateral line (E1 row scales). Crenicichla chicha shares a smooth preopercular margin, co-ossification of infraorbitals 3 and 4, and some color features with C. hemera from the adjacent rio Aripuanã drainage, rio Madeira basin. It differs from Crenicichla hemera in more E1 scales (66-75 vs. 58-65) and presence of a conspicuous black narrow stripe running from infraorbital 3 obliquely caudoventrad toward the preopercular margin vs. a rounded and faint suborbital marking present on infraorbitals 3-4. Examination of the type series and additional material from the rio Aripuanã confirms that Crenicichla guentheri Ploeg, 1991 is a junior subjective synonym of C. hemera Kullander, 1990. (AU)

• Processo FAPESP: 07/02978-7 - Sistemática do gênero Brycon (Teleostei: Ostariophysi: Characiformes: Characidae): revisão taxonômica das espécies da América do Sul transandina e América Central e do complexo Brycon pesu e filogenia e biogeografia de Bryconinae
• Beneficiário: Flávio César Thadeo de Lima
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado
• Processo FAPESP: 08/56130-1 - Revisao taxonomica das especies de crenichla (heckel 1840) das bacias dos rios parana e paraguai (perciformes: labroidei: cichlidae)
• Beneficiário: Henrique Rosa Varella
• Modalidade de apoio: Bolsas no Brasil - Mestrado