acidops, Apteronotus Triques [M. L.] 2011:300, Figs. 1-2 [Vertebrate Zoology v. 61 (no. 3); ref. 31671] Rio Paraná at Ilha Solteira, 20°30'S, 51°00'W, between states of São Paula and Mato Grosso do Sul, Brazil. Holotype: MZUSP 45685. Paratypes: MZUSP 2646 (1), 22944 (1), 23094 (9, 1 c&s), 24463 (11); DZUFMG 040 (1). Plus 2 non-type specimens. Type catalog: Ferraris et al. 2017:[6] [ref. 35236]. •Valid as Apteronotus acidops Triques 2011 -- (Ferraris et al. 2017:[6] [ref. 35236], Reis et al. 2020:463 [ref. 38364]). Current status: Valid as Apteronotus acidops Triques 2011. Apteronotidae: Apteronotinae. Distribution: South America: upper Paraná River basin (Brazil). Habitat: freshwater.