Shane Gross / A juvenile soldierfish, possibly a Crescent-tail bigeye (Priacanthus hamrur) in the open ocean at night off Anilao, Philippines.

Georgette Douwma / Big-eye fish (Priacanthus hamrur). Egypt, Red Sea.

Franco Banfi,Franco Banfi / Local man looking down at shoal of Bigeye scad (Selar crumenophthalmus) Waigeo island, Raja Ampat, Irian Jaya, West Papua, Indonesia, Pacific Ocean

Juergen Freund / School of Bigeye jacks / Trevally (Caranx sexfasciatus). Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / School of Bigeye jacks / trevally (Caranx sexfasciatus). Misool, Raja Ampat, West Papua, Indonesia

Juergen Freund / School of Bigeye jacks / trevally (Caranx sexfasciatus) and Yellow line / Yellowstripe scads (Selaroides leptolepis). Misool, Raja Ampat, West Papua, Indonesia

Jeff Rotman / Close up of Goggle eye / Bigeye fish (Priacanthus hamrur) Red Sea, Egypt

Juergen Freund / A school of Bigeye Snapper {Lutjanus lutjanus} Indo-pacific

Juergen Freund / A school of Bigeye snapper {Lutjanus lutjanus} Indo-pacific

Georgette Douwma / Big-eye or Goggle-eye (Priacanthus hamrur) on wreck. Note colour change from deep red to silver. Egypt, Red Sea

Georgette Douwma / Bigeye / Goggle-eye (Priacanthus hamrur) showing colour change from deep red to silver. Sipadan, Malaysia.

Juergen Freund / Big eye jack school just under surface (Caranx sexfasciatus) Indo-Pacific.