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 Planaltina britskii Menezes, Weitzman, Burns, 2003 Fig. 11 Body elongate; greatest body depth contained 3.9 to 5.4, caudal peduncle depth 7.1 to 10.0 times in SL; head length 3.9 to 4.6, predorsal distance 1.8 to 1.9, and caudal peduncle length 7.0 to 10.3 in SL; snout length 3.3 to 4.5, horizontal orbital diameter 2.4 to 2.8, and least interorbital width 2.8 to 4.3 times in HL. Mouth terminal; outer row of premaxilla with 3, inner row with 4; maxilla with 2 teeth. Lateral line complete, with 38-42 pored scales; transverse series above lateral line with 5 scales above and below with 4 scale rows. Dorsal fin with 10, pectoral fin with 10-12, pelvic fin with 7, anal with 19-24, and caudal fin with 19 rays ( Menezes et al. , 2003 ). Ground color silvery to pale yellow; dark-brown longitudinal stripe from humeral region to caudal fin, forming irregular spot on base of median rays ( Graça, Pavanelli, 2007 ). Maximum standard length. 40.0 mm ( Graça, Pavanelli, 2007 ). Distribution. Upper rio Paraná basin.