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 Hoplias sp. 3 Fig. 13 Body elongated; greatest depth contained 4.7 to 4.8, caudal peduncle depth 7.8 to 9.0 times in SL; head length 3.2 to 3.3, predorsal distance 2.1 to 2.2 and caudal peduncle length 7.8 to 9.0 in SL; snout length 4.0 to 4.2, horizontal orbital diameter 5.1 to 5.4 and least interorbital width 4.0 to 4.2 in HL. Mouth terminal; premaxilla with 8-10; dentary with 30-35; maxilla with 32-36 teeth. Lateral line with 40-42 pored scales; series between lateral lines with 113 scale rows. Dorsal fin with 13, pectoral fin with 13 or 14, pelvic fin with 8, anal fin with 8-11 rays and caudal fin with 19 rays. Ground color pale brown; dark-brown longitudinal band, from opercle to caudal peduncle; several dark-brown irregular transverse bars. Fins with dark-brown spots, sometimes forming darkbrown stripes parallel with fin base ( Graça, Pavanelli, 2007 ). Maximum standard length. 190.0 mm ( Graça, Pavanelli, 2007 ). Distribution. Río Paraná, rio Iguaçu and río Uruguay basins ( Bifi, 2013 ).