acanthogaster, Myletes Valenciennes [A.] in Cuvier & Valenciennes 1850:209 [Histoire naturelle des poissons v. 22; ref. 1014] Lake de Maracaibo, Venezuela. Holotype (unique): MNHN A-1065. •Valid as Mylossoma acanthogaster (Valenciennes 1850) -- (Galvis et al. 1997:39 [ref. 23651], Jégu in Reis et al. 2003:187 [ref. 27061], DoNascimiento et al. 2017:37 [ref. 35633], Mateussi et al. 2018:277 [ref. 35820], Ota et al. 2024:416 [ref. 40817]). Current status: Valid as Mylossoma acanthogaster (Valenciennes 1850). Serrasalmidae: Colossomatinae. Distribution: South America: Lake Maracaibo basin, Venezuela and Colombia. Habitat: freshwater.