xinguense, Ossubtus Jégu [M.] 1992:240, Figs. 4, 11 [Ichthyological Exploration of Freshwaters v. 3 (no. 3); ref. 20009] Rio Xingu, Altamira, Pará, Brazil, 3°12'12"S, 52°12'23"W. Holotype: INPA 6535. Paratypes: INPA 3979 (4), 4364 (2), 6536 (1, cleared); MNHN 1992-0003 (1), ?MNHN 1992-0004 (2); ZSM 27765 (5 now 4), 28377 (1). Type catalog: Neumann 2011:247 [ref. 31652]. •Valid as Ossubtus xinguense Jégu 1992 -- (Jégu et al. 2002:270 [ref. 26654], Jégu in Reis et al. 2003:187 [ref. 27061], Andrade et al. 2013:304 [ref. 32757], Andrade et al. 2016:491 [ref. 34140], Andrade et al. 2016:5 [ref. 34773], Ota et al. 2024:417 [ref. 40817]). Current status: Valid as Ossubtus xinguense Jégu 1992. Serrasalmidae: Myleinae. Distribution: South America: Xingu River basin, Brazil. Habitat: freshwater.