Peixes da planície de inundação do alto rio Paraná e áreas adjacentes: revised, annotated and updated Author Ota, Renata Rúbia Author Deprá, Gabriel de Carvalho Author Graça, Weferson Júnio da Author Pavanelli, Carla Simone text Neotropical Ichthyology 2018 2018-06-11 16 2 1 111 journal article 10.1590/1982-0224-20170094 f68fe85c-2a4c-4625-b684-74f61398d6c2 1982-0224 3678395 Oreochromis niloticus (Linnaeus, 1758) Fig. 35 Body deep; greatest body depth contained 2.3 to 2.9, head depth 3.0 to 4.0 and caudal peduncle depth 6.3 to 7.3 times in SL; head length 2.7 to 3.2 and caudal peduncle length 7.0 to 10.0 in SL; snout length 2.5 to 3.3, horizontal orbital diameter 3.1 to 5.0 and least interorbital width 2.2 to 3.2 to in HL. Mouth terminal; premaxilla and dentary with three or more teeth rows. Upper lateral line with 21-23, lower lateral line with 13-16 pored scales and longitudinal series with 30-35 scales. Transversal series above upper lateral line with 4-5 scale rows and below lower lateral line with 8-12 scale row. Dorsal fin with XVII-XVIII,11-15, pectoral fin with 14-16, pelvic fin with I,5 and anal fin with III,8-10 rays. Ground color greyish to pale brown; black rounded blotch on posterior margin of opercle; dark-brown transverse bars on flank. Dorsal, anal and pelvic fins hyaline and scattered with dark-brown spots; caudal fin with dark-brown spots united forming transverse stripes. Maximum standard length. 200.0 mm ( Graça, Pavanelli, 2007 ). Distribution. Africa, widely introduced everywhere ( Eschmeyer et al. , 2017 ), including Brazil . Remarks. Oreochromis niloticus is an African species, widely introduced in South America by fish farming.