gigas, Sudis Schinz [H. R.] (ex Cuvier) 1822:305 [Das Thierreich v. 2; ref. 3926] Brazil. Holotype: MNHN A-8837. Based on Cuvier, Regne Animal, pl. X. •Valid as Clupisudis gigas (Schinz 1822) -- (Daget 1968:1058 [ref. 26392] with author as Schinz in Cuvier). •Valid as Arapaima gigas (Schinz 1822) -- (Ortega & Vari 1986:6 [ref. 9708], Lundberg & Chernoff 1992:2 [ref. 25493], Ferraris in Reis et al. 2003:31 [ref. 27061], Kottelat 2013:31 [ref. 32989], Stewart 2013:38 [ref. 32556], Stewart 2013:471 [ref. 32923], Stewart 2013:474 [ref. 32923], Barriga Salazar 2014:104 [ref. 35745], Sarmiento et al. 2014:119, 188 [ref. 35004] as aff. gigas, Ramos et al. 2014:3 [ref. 35321], Reis et al. 2016:12, 15 [ref. 34496], DoNascimiento et al. 2017:33 [ref. 35633], Fadjar et al. 2019:3528 [ref. 37248], Careaga et al. 2020:77 [ref. 37774], Meza-Vargas et al. 2021:14 [ref. 39298], Jamandre 2023:171 [ref. 40455], Fricke et al. 2024:137 [ref. 41622]). Current status: Valid as Arapaima gigas (Schinz 1822). Arapaimidae. Distribution: South America: Amazon River basin: Brazil, Colombia, Ecuador, ?Guyana and Peru. Introduced in Mexico, Java (Indonesia) and the Philippines. Habitat: freshwater.