itacaiunas, Rhamdia Silfvergrip [A. M. C.] 1996:83, Pl. 2 (figs. 1-2) [A systematic revision of the neotropical catfish genus Rhamdia; ref. 22347] Rio Tocantins drainage, `Igarapé Repartimento', Amazonas State, Brazil. Holotype: INPA 7985 (130.9 mm). Paratypes: INPA 7985 (2, with holotype); MZUSP 34744 (2). Type catalog: Ferraris 2007:198 [ref. 29155]. •Valid as Rhamdia itacaiunas Silfvergrip 1996 -- (Bockmann & Guazzelli in Reis et al. 2003:423 [ref. 27061], Ferraris 2007:198 [ref. 29155], Angrizani & Malabarba 2018:44 [ref. 35829]). Current status: Valid as Rhamdia itacaiunas Silfvergrip 1996. Heptapteridae: Rhamdiinae. Distribution: Middle Tocantins River basin, Brazil. Habitat: freshwater.