Two new species of the Hypostomus cochliodon group (Siluriformes: Loricariidae) from the rio Negro basin in Brazil

Autor(es)

Carvalho, Pedro Hollanda ^[1] ; Lima, Flavio C. T. ^[1] ; Zawadzki, Claudio H. ^[2]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Museu Zool, BR-04299970 Sao Paulo - Brazil

^[2] Univ Estadual Maringa, BR-87020900 Maringa, Parana - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Neotropical Ichthyology; v. 8, n. 1, p. 39-48, JAN-MAR 2010.
• Citações Web of Science: 14

Resumo

Two new species of Hypostomus are described from the middle and upper rio Negro in Brazil. They are assigned to the Hypostomus cochliodon group (sensu Armbruster, 2003) by possessing few spoon-shaped teeth, and dentary angle averaging less than 80º. Hypostomus kopeyaka is described from the rio Tiquié, a tributary of the rio Uaupés, upper rio Negro basin, presents a unique color pattern among the Hypostomus species belonging to the Hypostomus cochliodon group, consisting of conspicuously horizontally elongated, closely-set black spots over the entire dorsal and lateral surfaces of the body. Hypostomus weberi is described from the middle rio Negro and can be distinguished from all remaining Hypostomus species belonging to the Hypostomus cochliodon group by possessing a unique color pattern consisting in large, rounded, widelyspaced black spots over body and fins. (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