cephalus, Megalobrycon Günther [A.] 1869:423, Fig. 1 [Proceedings of the Zoological Society of London 1869 (pt 2); ref. 5780] Upper Amazon, Peru. Syntypes: BMNH 1869.5.21.1 (1), 1869.5.21.2 (1). •Valid as Brycon cephalus (Günther 1869) -- (Howes 1982:18 [ref. 14201], Ortega & Vari 1986:7 [ref. 9708], Géry & Mahnert 1992:802 [ref. 27146], Malabarba 1998:76 [ref. 23840], Lima in Reis et al. 2003:175 [ref. 27061], Barriga Salazar 2014:108 [ref. 35745], Sarmiento et al. 2014:44, 184 [ref. 35004]). •Synonym of Brycon amazonicus (Agassiz 1829) -- (Lima 2017:112 [ref. 35071], see DoNascimiento et al. 2017:[13] [ref. 35679]). Current status: Synonym of Brycon amazonicus (Agassiz 1829). Bryconidae: Bryconinae. Habitat: freshwater.