any deep-sea fishes
of the genera Argyropelicus, Sternoptyx,
and related genera, of tropical and temperate waters, having a silvery, hatchet-shaped body.
any of several freshwater fishes
of the genera Carnegiella, Gasteropelecus,
occurring from Panama to the Rio de la Plata and capable of flying short distances by rapid movements of their large pectoral fins.