Species that contain: Serrasalmus and rhombeus [ 7 ] records

boekeri, Serrasalmus Ahl [E.] 1931:406, Fig. [Sitzungsberichte der Gesellschaft Naturforschender Freunde zu Berlin 1930; ref. 16255] Amazon River. Holotype (unique): ZMB (lost). Types mentioned: Paepke 1995:92 [ref. 21847]. Misspelled or emended to boekery in Fowler 1950:379 [ref. 18869]. •Synonym of Serrasalmus rhombeus (Linnaeus 1766) -- (Jégu in Reis et al. 2003:192 [ref. 27061], Ota et al. 2024:427 [ref. 40817]). Current status: Synonym of Serrasalmus rhombeus (Linnaeus 1766). Serrasalmidae: Serrasalminae. Habitat: freshwater.

gracilior, Serrasalmo humeralis var. Eigenmann [C. H.] 1915:257, Fig. 9 [Annals of the Carnegie Museum v. 9 (nos 3-4); ref. 1232] Rio Guaporé at Maciél, Brazil. Syntypes: FMNH 56977 [ex CM 5791] (now 3). Type catalog: Henn 1928:69 [ref. 12305] as 2 specimens, Ibarra & Stewart 1987:79 [ref. 12367]. •Synonym of Serrasalmus rhombeus (Linnaeus 1766) -- (Jégu in Reis et al. 2003:192 [ref. 27061], Ota et al. 2024:427 [ref. 40817]). Current status: Synonym of Serrasalmus rhombeus (Linnaeus 1766). Serrasalmidae: Serrasalminae. Habitat: freshwater.

immaculatus, Serrasalmo Cope [E. D.] 1878:692 [Proceedings of the American Philosophical Society v. 17 (no. 101); ref. 945] Peruvian Amazon. Lectotype: ANSP 21503. Paralectotypes: ANSP 21504-05 (2). Type catalog: Böhlke 1984:48 [ref. 13621] as holotype and paratypes. Original genus misspelled Serrasalimo in main heading. Lectotype selected by Fowler 1907:471, Fig. 54 [ref. 1374]. •Synonym of Serrasalmus rhombeus (Linnaeus 1766) -- (Jégu in Reis et al. 2003:192 [ref. 27061], Ota et al. 2024:427 [ref. 40817]). Current status: Synonym of Serrasalmus rhombeus (Linnaeus 1766). Serrasalmidae: Serrasalminae. Habitat: freshwater.

niger, Serrasalmus Jardine [W.] in Schomburgk 1841:225, Pl. 18 [The Natural history of fishes of Guiana; ref. 18707] Guyana. No types known. •Valid as Serrasalmus niger Jardine 1841 -- (Géry 1972:239 [ref. 1594]). •In genus Pygocentrus -- (Machado-Allison & Fink 1991:110 [ref. 22050]). •Synonym of Serrasalmus rhombeus (Linnaeus 1766) -- (Jégu in Reis et al. 2003:192 [ref. 27061], Ota et al. 2024:427 [ref. 40817]). Current status: Synonym of Serrasalmus rhombeus (Linnaeus 1766). Serrasalmidae: Serrasalminae. Habitat: freshwater.

normani, Serrasalmus (Taddyella) Géry [J.] 1964:614, Figs. 4, 5a [Vie et Milieu v. 14 (fasc. 3) [for 1963]; ref. 10056] Suriname. Holotype: ZMH H1601. Paratypes: Géry coll. •Genus Serrasalmus -- (Fink 1993:671 [ref. 20937]). •Synonym of Serrasalmus rhombeus (Linnaeus 1766) -- (Géry 1972:226 [ref. 1594], Machado-Allison 2002:69 [ref. 27640], Jégu in Reis et al. 2003:192 [ref. 27061] dating to 1963, Ota et al. 2024:427 [ref. 40817]). Current status: Synonym of Serrasalmus rhombeus (Linnaeus 1766). Serrasalmidae: Serrasalminae. Habitat: freshwater.

paraense, Serrasalmo (Serrasalmo) Steindachner [F.] 1908:362 [Anzeiger der Kaiserlichen Akademie der Wissenschaften, Wien, Mathematisch-Naturwissenschaftliche Klasse v. 45 (no. 18) (for 9 July 1908); ref. 18800] Rio Pará, Brazil. Syntypes: NMW 10587 (1), 57067 (1). •Questionably a synonym of Serrasalmus rhombeus (Linnaeus 1766) -- (Jégu in Reis et al. 2003:192 [ref. 27061], Ota et al. 2024:427 [ref. 40817]). Current status: Uncertain as Serrasalmus rhombeus (Linnaeus 1766). Serrasalmidae: Serrasalminae. Habitat: freshwater.

rhombeus, Salmo Linnaeus [C.] 1766:514 [Systema naturae sive regna tria naturae v. 1 (pt 1); ref. 2786] Brokopondo, Suriname River, Suriname. Neotype: RMNH 26192. Neotype designated by Géry 1972:229 [ref. 1594]. •Valid as Serrasalmus rhombeus (Linnaeus 1766) -- (Géry 1972:227 [ref. 1594], Ortega & Vari 1986:9 [ref. 9708], Taphorn 1992:340 [ref. 23654], Planquette et al. 1996:378 [ref. 22818], Fuller et al. 1999:190 [ref. 25838], Merckx et al. 2000:185 [ref. 24718], Nakayama et al. 2001:866 [ref. 25476], Lasso et al. 2001:96 [ref. 25928], Machado-Allison 2002:69 [ref. 27640], Jégu in Reis et al. 2003:192 [ref. 27061], López et al. 2003:32 [ref. 27366], Menni 2004:78 [ref. 28131], Machado-Allison et al. 2009:128 [ref. 30953], Hubert & Renno 2010:58 [ref. 31099], Barriga Salazar 2014:109 [ref. 35745], Ramos et al. 2014:4 [ref. 35321], Sarmiento et al. 2014:93, 187 [ref. 35004], Azpelicueta & Koerber 2015:45 [ref. 33654], Melo et al. 2016:374 [ref. 35317], Nión et al. 2016:28 [ref. 35565] with author without parentheses, DoNascimiento et al. 2017:38 [ref. 35633], Urbano-Bonilla et al. 2018:84 [ref. 35773], Careaga et al. 2020:76 [ref. 37774], Silvano et al. 2020:190 [ref. 38133], Meza-Vargas et al. 2021:17 [ref. 39298], Borstein et al. 2022:16 [ref. 39507], Koerber et al. 2022:19 [ref. 39235], Gallo-Cardozo et al. 2023:[5] [ref. 40628], Vieira et al. 2023:18 [ref. 40759], Ota et al. 2024:427 [ref. 40817], Gallo-Cardozo et al. 2024:18 [ref. 40973]). Current status: Valid as Serrasalmus rhombeus (Linnaeus 1766). Serrasalmidae: Serrasalminae. Distribution: South America: Amazon and Orinoco River basins, northern and eastern Guiana Shield, and northeastern Brazilian coastal rivers (Argentina, Uruguay, Bolivia, Brazil, Colombia, Ecuador, French Guiana, Guyana, Peru, Suriname and Venezuela) [but not Argentina on ref. 33654]. Habitat: freshwater.