bilineatus, Pygocentrus Eigenmann [C. H.] 1909:47 [Annals of the Carnegie Museum v. 6 (no. 1); ref. 1222] Aruka River, Guyana. Holotype: FMNH 58075 [ex CM 1072]. Paratypes: (4, CM and IU) CAS 57355-56 [ex IU 11756-57] (1, 2); FMNH 58076 (1). Type catalog: Henn 1928:69 [ref. 12305], Ibarra & Stewart 1987:73 [ref. 12367]. •Synonym of Serrasalmus calmoni Steindachner 1908, but a valid subspecies -- (Géry 1972:220 [ref. 1594]). •Not a Pygocentrus -- (Fink 1993:671 [ref. 20937]). •Synonym of Pristobrycon calmoni (Steindachner 1908) -- (Machado-Allison 2002:49 [ref. 27640], Jégu in Reis et al. 2003:188 [ref. 27061]). •Synonym of Serrasalmus calmoni Steindachner 1908 -- (Ota et al. 2024:423 [ref. 40817]). Current status: Synonym of Serrasalmus calmoni Steindachner 1908. Serrasalmidae: Serrasalminae. Habitat: freshwater.