tukunai, Hyphessobrycon Géry [J.] 1965:25, Pl. 4 (fig. 12) [Senckenbergiana Biologica v. 46 (no. 1); ref. 1584] Igarapé Préto, along Upper Amazon, near Belem, about 60 kilometers below Leticia, Brazil. Holotype: SMF 7209. Paratypes: Géry coll. 0187 (2), SMF 7210-11 (2) •Valid as Hyphessobrycon tukunai Géry 1965 -- (Lima & Malabarba in Reis et al. 2003:141 [ref. 27061], Carvalho & Langeani 2013:526 [ref. 32913], Barriga Salazar 2014:107 [ref. 35745] as cf. tukunai, Dagosta et al. 2014:366 [ref. 33382], Sarmiento et al. 2014:184 [ref. 35004], DoNascimiento et al. 2017:51 [ref. 35633]). Current status: Valid as Hyphessobrycon tukunai Géry 1965. Acestrorhamphidae: Hyphessobryconinae. Distribution: Amazon River basin: Brazil, Ecuador?, Colombia and Bolivia. Habitat: freshwater.