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 Pimelodus maculatus Lacépède, 1803 Fig. 29 Body deep; greatest depth contained 3.7 to 4.0 times in SL; head length 3.3 to 3.7, anal-fin base length 7.4 to 8.6, adipose-fin base length 4.2 to 4.4, maxillary-barbel length 0.9 to 1.4 in SL; snout length 2.0 to 2.3, horizontal orbital diameter 4.5 to 6.0, least interorbital width 3.3 to 3.8 in HL ( Deprá et al. , 2015 ); orbital diameter 0.8 to 1.2 in interorbital width. Mouth terminal; dentigerous tooth plates in both premaxilla and dentary; teeth absent in vomer and metapterygoid. Dorsal fin with I,6 rays, pectoral fin with I,11-14, pelvic fin with 6 and anal fin with 11-14 rays. Ground color yellowish; longitudinal series of dark-brown blotches. Dark-grey fins with black spots, especially on caudal and adipose fins ( Graça, Pavanelli, 2007 ). Maximum standard length. 275.0 mm ( Deprá et al. , 2015 ) Distribution. Río de la Plata basin.