macropterus, Mylesinus Ulrey [A. B.] 1894:612 [American Naturalist v. 28 (no. 331); ref. 12356] Brazil. Holotype (unique): CUMV 3267. Species was originally described on a single specimen as above, later described as new based on two specimens in Ulrey 1895:296 [ref. 12371]. •Synonym of Catoprion mento (Cuvier 1819) -- (Jégu in Reis et al. 2003:183 [ref. 27061], Mateussi et al. 2020:9 [ref. 37676], Ota et al. 2024:405 [ref. 40817]). Current status: Synonym of Catoprion mento (Cuvier 1819). Serrasalmidae: Serrasalminae. Habitat: freshwater.