Alex Mustard / Blue ring angelfish (Pomacanthus annularis) swimming in front of soft corals. Triton Bay, Kaimana, West Papua, Indonesia. Arafur Sea, Tropical West Pacific Ocean.

Georgette Douwma / Blue-ringed butterflyfish (Pomacanthus annularis) swimming over soft corals. Andaman Sea, Thailand.

Pascal Kobeh / Ring angelfish (Pomacanthus annularis) Sri Lanka. Indian Ocean.

Joel Sartore / Photo Ark / Blue ring angelfish (Pomacanthus annularis) portrait, Omaha's Henry Doorly Zoo and Aquarium. Captive, occurs in Indo-Pacific.

Georgette Douwma / Blue-ringed angelfish (Pomacanthus annularis) composite image on black background, Indonesia, Indo-Pacific.

Georgette Douwma / Tropical angelfish composite image on black background, Blue-ringed angelfish (Pomacanthus annularis), Semicircle angelfish (Pomacanthus semicirculatus), Blacktail angelfish (Centropyge eibli), Regal...