guaporensis, Metynnis Eigenmann [C. H.] 1915:267, Pl. 54 [Annals of the Carnegie Museum v. 9 (nos 3-4); ref. 1232] Rio Guaporé at Maciél, Brazil. Holotype: FMNH 56913 [ex CM 5729]. Paratypes: FMNH 56914-15 [ex CM 5729, smaller specimens] (2). Type catalog: Henn 1928:69 [ref. 12305], Ibarra & Stewart 1987:56 [ref. 12367]. •Valid as Metynnis guaporensis Eigenmann 1915 -- (Zarske & Géry 1999:190 [ref. 23984], Jégu in Reis et al. 2003:184 [ref. 27061], Sarmiento et al. 2014:89, 186 [ref. 35004], Ota et al. 2016:10 [ref. 35002], Ota et al. 2024:407 [ref. 40817]). Current status: Valid as Metynnis guaporensis Eigenmann 1915. Serrasalmidae: Serrasalminae. Distribution: South America: Guaporé River drainage, Bolivia and Brazil. Habitat: freshwater.