MonodactylusMonodactylus is a genus of moonyfishes found in fresh, brackish and marine waters from the eastern Atlantic, through the Indian to the western Pacific oceans.SpeciesThere are currently four recognized species in this genus:Monodactylus argenteus Monodactylus falciformis Lacépède, 1801 Monodactylus kottelati Pethiyagoda, 1991 ''Monodactylus sebae''