title: Teleocichla preta, a new species of cichlid from the Rio Xingu Basin in Brazil (Teleostei: Cichlidae).
abstract: Teleocichla preta nov. sp. inhabits the rapids along the Rio Xingu and lower portion of the Rio Iriri. It is the largest species in the genus, reaching 121·3 mm standard length (LS ) while others do not reach more than 87·8 mm LS . Teleocichla preta is distinguished from all other species of Teleocichla by the unique blackish (in live specimens) or dark brown (preserved specimens) overall colouration of the body, which masks the faint vertical bars or zig-zag pattern of blotches on the flanks. Teleocichla preta also has a deeper body and a deep laterally compressed caudal peduncle, unlike any other congener, as well as a stout lower pharyngeal tooth plate bearing molariform teeth on its median area.
authors.affiliation: Museu de Zoologia da Universidade de São Paulo, Caixa Postal 42494, 04218-970, São Paulo, SP, Brazil.
authors.forename: H R
authors.initials: HR
authors.lastname: Varella
authors.affiliation: Coordenação de Biodiversidade, Caixa Postal 2223, Instituto Nacional de Pesquisas da Amazônia, 69080-971, Manaus, AM, Brazil.
authors.forename: J
authors.initials: J
authors.lastname: Zuanon
authors.affiliation: Department of Zoology, Swedish Museum of Natural History, P. O. Box 50007, SE-104 05, Stockholm, Sweden.
authors.forename: S O
authors.initials: SO
authors.lastname: Kullander
authors.affiliation: Department of Natural History, Royal Ontario Museum, 100 Queen's Park, Toronto, ON, M5S 2C6, Canada.|Department of Ecology and Evolutionary Biology, University of Toronto, 25 Willcocks Street, Toronto, ON, M5S 3B2, Canada.
authors.forename: H
authors.initials: H
authors.lastname: López-Fernández
mesh_terms: D000818:Animals; D001938:Brazil; D023681:Cichlids / Q000145:classification*; D005260:Female; D008297:Male; D045483:Rivers
keywords: Amazon basin; durophagy; endemism; rapids; rheophilic species; taxonomy