aesopus, Serrasalmo Cope [E. D.] 1872:269 [Proceedings of the Academy of Natural Sciences of Philadelphia v. 23; ref. 921] Marañon between mouths of Rio Negro, Brazil and Rio Huallaga, Peru. Holotype (unique): ANSP 7914. Type catalog: Böhlke 1984:42 [ref. 13621]. •Mention -- (Géry 1972:210 [ref. 1594] as oesopus). •Synonym of Serrasalmus maculatus Kner 1858 -- (Jégu in Reis et al. 2003:191 [ref. 27061], Litz & Koerber 2014:10 [ref. 33622], Mirande & Koerber 2015:16 [ref. 35117], Koerber et al. 2017:23 [ref. 35267], Ota et al. 2024:426 [ref. 40817]). Current status: Synonym of Serrasalmus maculatus Kner 1858. Serrasalmidae: Serrasalminae. Habitat: freshwater.