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Teleocichla preta , a new species of cichlid from the Rio Xingu Basin in Brazil (Teleostei: Cichlidae)

2016; Wiley; Volume: 89; Issue: 3 Linguagem: Inglês

10.1111/jfb.13053

1095-8649

Henrique Rosa Varella, Jansen Zuanon, S. O. Kullander, Hernán López‐Fernández,

Fish Ecology and Management Studies

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.