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 Eigenmannia virescens (Valenciennes, 1836) Fig. 17 Body elongated and compressed; greatest body depth contained 5.7 to 7.0 times in TL; head length 6.4 to 8.3, anal-fin base length 1.1 to 1.2, caudal filament length 2.6 to 4.9, preanal distance 5.3 to 6.4 and prepectoral distance 6.4 to 9.3 in LEA; snout length 3.1 to 4.4, horizontal orbital diameter 5.4 to 7.3 and least interorbital width 2.9 to 4.0 in HL. Mouth terminal. Pectoral fin with 14 or 17 and anal fin with 186-245 rays. Lateral line complete, with 150-162 pored scales; transverse series above lateral line with 15- 16 scale rows ( Campos-da-paz, 1997 ). Ground color pale brown; two dark-brown longitudinal stripes on flank (one on lateral line, one ventral to it) ( Graça, Pavanelli, 2007 ). Maximum total length. 320.0 mm TL ( Graça, Pavanelli, 2007 ). Distribution. Río Orinoco and río de la Plata basins.