Georgette Douwma / Masked butterflyfish (Chaetodon semilarvatus) with acropora coral. Egypt, Red Sea. Red Sea endemic.

Georgette Douwma / Two Golden / Masked butterflyfish, Red Sea, Eygpt

Alex Mustard / Eye of a Masked butterflyfish (Chaetodon semilarvatus). This species is endemic to the Red Sea. Ras Mohammed National Park, Sinai, Egypt. Red Sea

Linda Pitkin / Masked butterflyfish (Chaetodon semilarvatus), pair sheltering under table coral (Acropora) Shark Reef to Jolande, Ras Mohammed National Park, Egypt, Red Sea.

Linda Pitkin / Masked butterflyfish (Chaetodon semilarvatus), pair on coral reef. Jackson Reef, Straits of Tiran, Red Sea, Egypt.

Georgette Douwma / Blue chevron butterflyfish (Chaetodon larvatus). Egypt, Red Sea.

Pascal Kobeh / Pair of Masked butterflyfish (Chaetodon semilarvatus), pair of Red Sea bannerfish (Heniochus intermedius) and Blackspotted sweetlips (Plectorhinchus gaterinus) under a hard coral table (Acropora) Suda...

Pascal Kobeh / Pair of Masked butterflyfish (Chaetodon semilarvatus), pair of Red Sea bannerfish (Heniochus intermedius) and Backspotted sweetlips (Plectorhinchus gaterinus) under a hard coral table (Acropora) Sudan...

Pascal Kobeh / Pair of Masked butterflyfish (Chaetodon semilarvatus) Sudan. Red Sea.

Pascal Kobeh / Two Longfin / Reef bannerfish (Heniochus acuminatus) and two Masked bannerfish (Heniochus monoceros) in front of Giant seafans / gorgonians (Subergorgia mollis) on a coral reef, Madagascar. Indian Oc...

Pascal Kobeh / Two Longfin / Reef bannerfish (Heniochus acuminatus) and two Masked bannerfish (Heniochus monoceros) in front of Giant seafans / gorgonians (Subergorgia mollis) on a coral reef, Madagascar. Indian Oc...

Alex Mustard / Portrait of an Orangeface butterflyfish (Chaetodon larvatus) This species is endemic to the Red Sea. Wreck of Kingston, Shag Rock, Sinai, Egypt. Gulf of Suez, Red Sea.

Alex Mustard / Pair of Masked butterflyfish (Chaetodon semilarvatus) in shallow channel at the edge of coral reef. These fish are endemic to the Red Sea. Jackson Reef, Strait of Tiran, Sinai, Egypt. Gulf of Aqaba, R...

Alex Mustard / Portrait of Masked butterflyfish (Chaetodon semilarvatus), swimming next to coral reef. Endemic to Red Sea. Malahi, Fury Shoal, Egypt.

Michael Pitts / Masked butterflyfish (Chaetodon semilarvatus) Red Sea.

Georgette Douwma / Masked bannerfish (Heniochus monoceros) group above coral reef, Maldives, Indo-West Pacific

Juergen Freund / Two Masked bannerfish {Heniochus monoceros} beside Giant yellow soft coral with diver in background, Indo-pacific

GEORGETTE DOUWMA / Golden / masked butterflyfish {Chaetodon semilarvatus} on coral reef, Red Sea, Egypt

Chris Newbert / Masked Butterflyfish (Chaetodon semilarvatus) 30 feet deep, Red Sea, Egypt

Norbert Wu / Masked Butterflyfish (Chaetodon semilarvatus) school and Butterflyfish (Heniochus diphreutes), Red Sea, Egypt

Norbert Wu / Masked Butterflyfish (Chaetodon semilarvatus) endemic to Red Sea, Egypt

GEORGETTE DOUWMA / Two Golden / Masked butterflyfish, Red Sea, Eygpt

GEORGETTE DOUWMA / Two Golden / Masked butterflyfish, Red Sea, Eygpt

GEORGETTE DOUWMA / Golden / Masked butterfly fish with bannerfish shoal. Digitally manipulated image

GEORGETTE DOUWMA / Golden/ Red Sea Masked butterflyfish among coral (Chaetodon semilarvatus)

Franco Banfi / Two Masked butterflyfish (Chaetodon semilarvatus) swimming over reef, Sinai Peninsula, Red Sea, Egypt.

Franco Banfi / Masked butterflyfish (Chaetodon semilarvatus) shoal swimming over reef, South Point dive site, Sha'ab Rumi reef, Sudan, Red Sea.

Georgette Douwma / Butterflyfish composite image on black background, Orange face butterflyfish (Chaetodon larvatus), Red Sea Eritrean butterflyfish (Chaetodon paucifasciatus), Redtail butterflyfish (Chaetodon collare),...

Shane Gross / Masked butterflyfish (Chaetodon semilarvatus) pair and Coral hind (Cephalopholis miniata) in coral reef. Marsa Alam, Egypt.