Fred Bavendam / Crescent-tail Bigeye (Priacanthus hamrur) in front of a sea fan, Uepi Island, Solomon Islands

Fred Bavendam / Crescent-tail Bigeye (Priacanthus hamrur), Lizard Island, Great Barrier Reef, Queensland, Australia

Jeff Rotman / Head portrait of Lunartail grouper (Variola louti) Red Sea, Egypt

Jeff Rotman / Tail Fin of Lunartail grouper (Variola louti) Red Sea, Egypt

Fred Bavendam / Crescent-tail Bigeye (Priacanthus hamrur) school, Milne Bay, Papua New Guinea

Fred Bavendam / Crescent-tail Bigeye (Priacanthus hamrur) school, Lizard Island, Great Barrier Reef, Australia

Fred Bavendam / Crescent-tail Bigeye (Priacanthus hamrur) school, Lizard Island, Great Barrier Reef, Australia

Juergen Freund / Goggle Eye Fish (Priacanthus hamrur), Queensland, Australia. Also known as Lunar-tailed bigeye, or moontail bullseye.

Fred Bavendam / Crescent-tail Bigeye (Priacanthus hamrur) group exhibiting colorations from red to silver, Nusa Tenggara, Indonesia

Fred Bavendam / Crescent-tail Bigeye (Priacanthus hamrur) school, underwater, side view, Lizard Island, Great Barrier Reef, Queensland, Australia