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 Geophagus brasiliensis (Quoy, Gaimard, 1824) Fig. 35 Body deep; greatest depth contained 2.2 to 2.5 times in SL; head length 2.4 to 3.1 in SL; snout length 1.7 to 2.4, horizontal orbital diameter 2.9 to 4.7 and least interorbital width 2.7 to 3.2 in HL. Mouth terminal; premaxilla with 2 or 3 and dentary with 2 to 4 teeth rows. Upper lateral line with 17-19 pored scales, lower lateral line with 10-14 pored scales, and longitudinal series with 24-27 scales. Transversal series above upper lateral line with 4 scale rows and below lower lateral line with 5 scale rows. Dorsal fin with XVI- XVII,10-13, pectoral fin with 14 or 15, pelvic fin with I,5 and anal fin with III,7-10 rays. Ground color iridescent green; conspicuous dark-brown rounded blotch on flank; sometimes longitudinal rows of bluish spots on flank. Yellowish-red fins, with white small spots ( Graça, Pavanelli, 2007 ). Maximum standard length. 175.0 mm ( Graça, Pavanelli, 2007 ). Distribution. Coastal drainages of Eastern and Southern Brazil , río Uruguay basin and upper rio Paraná floodplain.