CypsellurinaeCypsellurinae is a subfamily of flying fishes, one of four in the family Exocoetidae and the only one which is not monogeneric.GeneraThe following four genera make of the subfamily:Cheilopogon Lowe, 1841Cypselurus Swainson, 1838Hirundichthys Breder, 1928Prognichthys Breder, 1928