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 Characidium 1. Lateral line incompletely pored; orbit large, contained 2.3 to 3.2 times in head length .................... Characidium sp. 1’. Lateral line completely pored; orbit small, contained 3.5 to 4.4 times in head length ............................................ 2 2. Isthmus and region between pectoral fins without scales; fins with dark-brown stripes.................................. C. gomesi 2’. Isthmus and region between pectoral fins covered by scales; fins hyaline ............................................ C. aff. zebra