Hysteronotus megalostomus Eigenmann, 1911 sec. Eschmeyer 2004 Dataset Global Names Usage Bank Classification class Actinopterygii order Characiformes family Characidae Name Homonyms Hysteronotus megalostomus Eigenmann, 1911 sec. Eschmeyer 2004 Hysteronotus megalostomus Eigenmann, 1911 Hysteronotus megalostomus Eigenmann, 1911 sec. Eigenmann 1911 Hysteronotus megalostomus Eigenmann, 1911