Gary Bell/ Oceanwide / Royal Angelfish (Pygoplites diacanthus), Christmas Island, Australia

Pete Oxford / Regal angelfish (Pygoplites diacanthus) Rainbow Reef, Fiji, South Pacific.

Georgette Douwma / Regal angelfish (Pygoplites diacanthus) swimming over coral reef. Egypt, Red Sea.

Norbert Wu / Royal Angelfish (Pygoplites diacanthus), Moorish Idol (Zanclus cornutus), and Parrotfish (Scaridae) school in coral reef, Bali, Indonesia

Juergen Freund / Regal / Royal angelfish (Pygoplites diacanthus) North Raja Ampat, West Papua, Indonesia,

Juergen Freund / Regal / Royal angelfish (Pygoplites diacanthus) North Raja Ampat, West Papua, Indonesia,

Fred Bavendam / Royal Angelfish (Pygoplites diacanthus), Bali, Indonesia

GEORGETTE DOUWMA / Regal angelfish (Pygoplites diacanthus) Misool, Raja Empat, West Papua, Indonesia.

GEORGETTE DOUWMA / Regal angelfish (Pygoplites diacanthus) Solomon Islands, Indo-Pacific

GEORGETTE DOUWMA / Titan Moustache / triggerfish (Balistoides viridescens), chewing on coral, with a Regal angelfish (Pygoplites diacanthus) taking advantage of the exposed rock. Andaman Sea, Thailand

Ingo Arndt / Royal Angelfish (Pygoplites diacanthus), Philippines

GEORGETTE DOUWMA / Regal angelfish (Pygoplites diacanthus) on coral reef, Red Sea, Egypt

Georgette Douwma / Regal angelfish (Pygoplites diacanthus) feeding on sponge. Red Sea, Egypt

GEORGETTE DOUWMA / Regal angelfish (Pygoplites diacanthus) swimming past corals. Red Sea, Egypt.

Jeff Rotman / Regal / Royal Angelfish (Pygoplites diacanthus) among soft coral. Egypt, Red Sea.

Chris Newbert / Royal Angelfish (Pygoplites diacanthus) 40 feet deep, Papua New Guinea

GEORGETTE DOUWMA / Regal angelfish {Pygoplites diacanthus} Bunaken NP, North Sulawesi, Indonesia

GEORGETTE DOUWMA / Regal angelfish {Pygoplytes diacanthus} swimming over coral reef. Sipadan, Malaysia.

Jeff Rotman / Close-up of skin of Regal angelfish. (Pygoplites diacanthus) Australia, Great Barrier reef

Jeff Rotman / Regal angelfish head / face close-up (Pygoplites diacanthus) Red Sea

Gary Bell/ Oceanwide / Royal Angelfish (Pygoplites diacanthus), Great Barrier Reef, Australia

Gary Bell/ Oceanwide / Royal Angelfish (Pygoplites diacanthus), Great Barrier Reef, Australia

David Fleetham / Regal angelfish (Pygoplites diacanthus), Sipidan Island, Malaysia.

Alex Mustard / Table coral (Acropora sp.) growing on a coral reef with a Regal angelfish (Pygoplites diacanthus) passing by, Laamu Atoll, Maldives, Indian Ocean.

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

Magnus Lundgren / Wild Wonders of China / Regal angelfish (Pygoplites diacanthus) Green Island, Taiwan.

Alex Mustard / Regal angelfish (Pygoplites diacanthus) spreads its fins and flutters its tail in the face of a predatory snubnose grouper (Epinephelus macrospilos) to chase it from its territory on a coral reef. Ras...

Nick Hawkins / Royal angelfish (Pygoplites diacanthus) in Raja Ampat, West Papua, Indonesia, Pacific Ocean.

Frederique Olivier / Bluebanded angelfish (Pygoplites diacanthus) swimming amongst porites and soft corals, Uepi Island, Solomon Islands.

Georgette Douwma / Regal angelfish (Pygoplites diacanthus). West Papua, Indonesia.