Claudio Contreras / Giant Manta Ray (Manta birostris) at cleaning station with Clarion Angelfish (Holacanthus clarionensis) San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve (The Socorro Islands), Pacific...

Claudio Contreras / Clarion angelfish (Holacanthus clarionensis) Socorro Island, Revillagigedo Archipelago Biosphere Reserve (Socorro Islands), Pacific Ocean, Western Mexico, March

Claudio Contreras / Flag Cabrilla (Epinephelus labriformis) and Clarion Angelfish (Holacanthus clarionensis), Clarion Angelfish IUCN Vulnerable, San Benedicto Island, Revillagigedo Archipelago Biosphere Reserve (Socorro...

Claudio Contreras / Carolines / Stareye Parrotfish (Calotomus carolinus), territorial dispute, Clarion Angelfish (Holacanthus clarionensis), Clarion Angelfish IUCN Vulnerable, San Benedicto Island, Revillagigedo Archipel...

Claudio Contreras / Clarion Angelfish (Holacanthus clarionensis) shoal, IUCN Vulnerable, Socorro Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Soc...

Claudio Contreras / Clarion angelfish (Holacanthus clarionensis) shoal, Socorro Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Socorro Islands), P...

Claudio Contreras / Clarion Angelfish (Holacanthus clarionensis) and coral, IUCN Vulnerable, Socorro Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site...

Claudio Contreras / Clarion Angelfish (Holacanthus clarionensis) group of three, IUCN Vulnerable, Socorro Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage...

Claudio Contreras / Clarion Angelfish (Holacanthus clarionensis), IUCN Vulnerable, Socorro Island, Revillagigedo Archipelago Biosphere Reserve / Archipielago de Revillagigedo UNESCO Natural World Heritage Site (Socorro I...

Pascal Kobeh / Giant manta ray (manta birostris) with two Remoras (Remora remora) attached its body and surrounded with Black jacks / trevally (Caranx lugubris) and a Clarion angelfish (Holacanthus clarionensis) Re...

Pascal Kobeh / Giant manta ray (manta birostris) with two Remoras (Remora remora) attached its body and surrounded with Black jacks / trevally (Caranx lugubris) and a Clarion angelfish (Holacanthus clarionensis) Re...

Pascal Kobeh / Diver filming a Giant manta ray (manta birostris) with two Remoras (Remora remora) attached its body and surrounded with Black jacks / trevally (Caranx lugubris) and a Clarion angelfish (Holacanthus c...

Pascal Kobeh / Divers behind a Giant manta ray (manta birostris) with two Remoras (Remora remora) attached its body and surrounded with Black jacks / trevally (Caranx lugubris) and a Clarion angelfish (Holacanthus c...

Pascal Kobeh / Giant manta ray (manta birostris) swimming in open water surrounded with black jacks / trevally (Caranx lugubris) and a Clarion angelfish (Holacanthus clarionensis) which usually cleans it, Revillagig...

Pascal Kobeh / Giant manta ray (manta birostris) swimming in open water surrounded with Black jacks / trevally (Caranx lugubris) and a Clarion angelfish (Holacanthus clarionensis) Revillagigedo islands, Mexico. Paci...

Pascal Kobeh / Giant manta ray (manta birostris) swimming in open water surrounded with Black jacks / trevally (Caranx lugubris) and a Clarion angelfish (Holacanthus clarionensis) Revillagigedo islands, Mexico. Paci...

Pascal Kobeh / Giant manta ray (manta birostris) swimming in open water surrounded with Black jacks / trevally (Caranx lugubris) and a Clarion angelfish (Holacanthus clarionensis) Revillagigedo islands, Mexico. Paci...

Pascal Kobeh / Giant manta ray (manta birostris) swimming in open water surrounded with Black jacks / trevally (Caranx lugubris) and a Clarion angelfish (Holacanthus clarionensis) Revillagigedo islands, Mexico. Paci...

Norbert Wu / Whitecheek Surgeonfish (Acanthurus nigricans) in school of Clarion Angelfish (Holacanthus clarionensis), Revillagigedos Islands, Mexico

Norbert Wu / Clarion Angelfish (Holacanthus clarionensis) school, Revillagigedos Islands, Mexico

Norbert Wu / Clarion Angelfish (Holacanthus clarionensis) group following Manta Ray (Manta birostris) to pick up food bits, Revillagigedos Islands, Mexico

Fred Bavendam / Clarion Angelfish (Holacanthus clarionensis) juvenile, Socorro Island, Mexico

Norbert Wu / Manta Ray (Manta birostris) being cleaned by Clarion Angelfish (Holacanthus clarionensis) pair near diver, Socorro Island, Revillagigedo Islands, Mexico

Norbert Wu / Manta Ray (Manta birostris) being cleaned by Clarion Angelfish (Holacanthus clarionensis) group, Socorro Island, Revillagigedo Islands, Mexico

Norbert Wu / Manta Ray (Manta birostris) being cleaned by Clarion Angelfish (Holacanthus clarionensis) group, Socorro Island, Revillagigedo Islands, Mexico

Norbert Wu / Manta Ray (Manta birostris) with Clarion Angelfish (Holacanthus clarionensis) school and underwater photographer, Socorro Island, Revillagigedo Islands, Mexico

Norbert Wu / Manta Ray (Manta birostris) with Clarion Angelfish (Holacanthus clarionensis) school, Socorro Island, Revillagigedo Islands, Mexico

Norbert Wu / Manta Ray (Manta birostris) with Clarion Angelfish (Holacanthus clarionensis) school, Socorro Island, Revillagigedo Islands, Mexico

Norbert Wu / Clarion Angelfish (Holacanthus clarionensis) school, Socorro Island, Revillagigedo Islands, Mexico

Norbert Wu / Clarion Angelfish (Holacanthus clarionensis) school, Revillagigedos Islands, Mexico

Norbert Wu / Clarion Angelfish (Holacanthus clarionensis) school around seamount, Revillagigedos Islands, Mexico

David Hall / Giant oceanic manta ray (Mobula birostris) swimming over volcanic rock with two Remoras (Remora sp.) attached in front and a Clarion angelfish "cleaner" (Holacanthus clarionensis) following behind, So...

David Hall / Giant oceanic manta ray (Mobula birostris) being followed by two Remoras (Remora sp.) and a group of Clarion angelfish (Holacanthus clarionensis), Revillagigedo Islands, Mexico, Pacific Ocean. Endange...

Alex Mustard / Oceanic manta ray (Mobula birostris) being cleaned by three Clarion angelfish (Holacanthus clarionensis), Socorro Island, Revillagigedo Islands, Mexico, Pacific Ocean.

Alex Mustard / Clarion angelfish (Holacanthus clarionensis) cleaning the skin of an Oceanic manta ray (Mobula birostris), Revillagigedo Islands, Mexico, Pacific Ocean.

Alex Mustard / Group of Clarion angelfish (Holacanthus clarionensis) cleaning an Oceanic manta ray (Mobula birostris) as it swims over the reef, Revillagigedo Islands, Mexico, Pacific Ocean.

Alex Mustard / Oceanic manta ray (Mobula birostris) rolling over on its back as it is cleaned by Clarion angelfish (Holacanthus clarionensis), Revillagigedo Islands, Mexico, Pacific Ocean.

Alex Mustard / Two Oceanic manta rays (Mobula birostris) waiting to be cleaned by Clarion angelfish (Holacanthus clarionensis), Revillagigedo Islands, Mexico, Pacific Ocean.

Alex Mustard / Orange clarion angelfish (Holacanthus clarionensis) head portrait, Socorro Island, Baja California, Mexico, Pacific Ocean.

Noemie Stroh / Black giant oceanic manta ray (Mobula birostris) being cleaned by Clarion angelfish (Holacanthus clarionensis), with Remora fish attached, Revillagigedo Islands, Mexico, December.

David Fleetham / Juvenile Clarion angelfish (Holacanthus clarionensis), San Benedicto Island, Revilligigedos, Mexico.