Achiridae, Rafinesque, 1815

Júnior, Horácio Ferreira Júlio, Tós, Claudenice Dei, Agostinho, Ângelo Antonio & Pavanelli, Carla Simone, 2009, A massive invasion of fish species after eliminating a natural barrier in the upper rio Paraná basin, Neotropical Ichthyology 7 (4), pp. 709-718 : 715

Achiridae

Achirids are saltwater and freshwater flatfishes ( Ramos, 2003) that encompass eight Neotropical genera. Previously included in the genus Achirus , the only species in the upper rio Paraná basin is Catathyridium jenynsii , which clearly colonized the region after the barrier removal, as already stated by Agostinho et al. (1994).