Alex Mustard / Brain coral (Colpophyllia natans) probably suffering from white band disease, East End, Grand Cayman, Cayman Islands. British West Indies, Caribbean Sea, January 2010.

Alex Mustard / Brain coral (Colpophyllia natans) bleached, polyps have expelled their zooxanthellae symbiotic algae from their tissue, probably as a result of being stressed by a rise in sea temperature, East End,...

Alex Mustard / Secretary blenny (Acanthemblemaria maria) living in a tube within Boulder brain coral (Colpophyllia natans). Photo illuminated with a single flash, with restricted beam to create hard lighting. East E...

Pete Oxford / Boulder Brain Coral (Colpophyllia natans), Belize Barrier Reef, Belize

Claudio Contreras / Boulder brain coral (Colpophyllia natans) close-up, Banco Chinchorro Biosphere Reserve, Caribbean Sea, Mexico, May

Martha Holmes / Close up of patterns in Brain coral (Colpophyllia natans) Carriacou, Caribbean

Norbert Wu / Boulder Brain Coral (Colpophyllia natans) common in south Florida, Bahamas and Caribbean, Saba, Dutch Antilles

Martha Holmes / Brain coral {Colpophyllia natans} feeding at night polyps exted Dominica Caribbean

Alex Mustard / Foureye butterflyfish (Chaetodon capistratus) feeding on Boulder brain coral (Colpophyllia natans) on a reef. This coral is infected with Stony coral tissue loss disease (SCTLD) and the butterflyfish...

Alex Mustard / Foureye butterflyfish (Chaetodon capistratus) feeding on Boulder brain coral (Colpophyllia natans) on a reef. This coral is infected with Stony coral tissue loss disease (SCTLD) and the butterflyfish...

Joel Sartore / Photo Ark / Boulder brain coral (Colpophyllia natans) portrait, Riverbanks Zoo and Garden, South Carolina. Captive.

Joel Sartore / Photo Ark / Boulder brain coral (Colpophyllia natans) portrait, Riverbanks Zoo and Garden, South Carolina. Captive.