Diver and rock covered in Zoanthid, Parazoanthus sp., Angra, Rio de Janeiro, Brazil, South Atlantic Ocean.

Female Cuckoo wrasse, Labrus bimaculatus, Dead man's fingers, Alcyonium digitatum, Øygarden, Hordaland, Norway, North Atlantic Ocean.

Goldsinny wrasse, Ctenolabrus rupestris, Dead man's fingers, Alcyonium digitatum, Øygarden, Hordaland, Norway, North Atlantic Ocean.

Female Cuckoo wrasse, Labrus bimaculatus, Dead man's fingers, Alcyonium digitatum, Øygarden, Hordaland, Norway, North Atlantic Ocean.

Unidentified shrimp on whipcoral, Angra, Rio de Janeiro, Brazil.

Unidentified shrimp on whipcoral, Angra, Rio de Janeiro, Brazil.

Stone coral garden, Elk horn coral, Acropora robusta, Pulau Sipadan, Sabah, Malaysia, Sulawesi sea.

Split image of Sipadan Island with Elkhorn coral, Acrophora sp., and Green chromis, Chromis viridis, Pulau Sipadan, Sabah, Malaysia, Sulawesi sea.

Anemone detail, Anthozoa, Seogwipo, Jeju-do, Cheju Island, South Korea.

Plumose anemones, Metridium senile, and diver, Krakhellesundet, Solund, Sogn og Fjordane, Norway.

Plumose anemones, Metridium senile, and diver, Krakhellesundet, Solund, Sogn og Fjordane, Norway.

Plumose anemones, Metridium senile, and diver, Krakhellesundet, Solund, Sogn og Fjordane, Norway.

Plumose anemones, Metridium senile, and diver, Krakhellesundet, Solund, Sogn og Fjordane, Norway.

Plumose anemones, Metridium senile, dabberlocks or badderlocks, or winged kelp, Alaria esculenta, and diver, Raftsundet, Hadsel, Nordland, Norway.

Plumose anemones, Metridium senile, dabberlocks or badderlocks, or winged kelp, Alaria esculenta, and diver, Raftsundet, Hadsel, Nordland, Norway.

Plumose anemones, Metridium senile, the Common Sea Star or Common Starfish (Asterias rubens), Saithe, Pollock, Pollachius virens, and dabberlocks or badderlocks, or winged kelp, Alaria esculenta, Raftsundet, Hadsel, Nordland, Norway.

Plumose anemones, Metridium senile, Saithe, Pollock, Pollachius virens, and green sea urchin, Strongylocentrotus droebachiensis, Raftsundet, Hadsel, Nordland, Norway.

Coral landscape, Dead mens fingers, Alcyonium digitatum, and Kelp, Laminaria hyperborea, Austrheim, Hordaland, Norway.

Coral landscape, Dead mens fingers, Alcyonium digitatum, and Kelp, Laminaria hyperborea, Austrheim, Hordaland, Norway.

Dead mens fingers, Alcyonium digitatum, Sea urchin, Echinus esculentus, and Common sun star, Crossaster papposus, Øygarden, Hordaland, Norway.

Dahlia anemone, Urticina felina, Detail, Gulen, Sogn og Fjordane, Norway.

Dahlia anemone, Urticina felina, Vågan, Nordland, Norway.

Urticina eques, Vågan, Nordland, Norway.

A small sea anemone, Protanthea simplex, on Sea squirt, Ciona intestinalis, Gulen, Sogn og Fjordane, Norway, North Atlantic Ocean

Dead mens fingers, Alcyonium digitatum, and Kelp, Laminaria hyperborea and Diver, Fosen straumen, Radøy, Hordaland, Norway

Commensal shrimp, Spirontocaris spinus, on Gorgonian, Paramuricea placomus, Trondheims fjord, Trondheim, Sør Trøndelag, Norway.

Commensal shrimp, Spirontocaris spinus, on Gorgonian, Paramuricea placomus, Trondheims fjord, Trondheim, Sør Trøndelag, Norway.

Gorgonian, Paramuricea placomus, Trondheims fjord, Trondheim, Sør Trøndelag, Norway.

Diver, Sea urchin, Echinus esculentus, Dead mens fingers, Alcyonium digitatum, and Kelp, Laminaria hyperborea, Øygarden, Hordaland, Norway, North Atlantic Ocean

Red Gorgonia, Paramuricea clavata, and Diver, Islas Medas, L'Estartit, Costa Brava, Spain, Mediterranean Ocean

Red Gorgonia, Paramuricea clavata, and Diver, Islas Medas, L'Estartit, Costa Brava, Spain, Mediterranean Ocean

Black Coral, Antipathes wollasti, and Diver, El Hierro, Canary Islands, Spain, Atlantic Ocean

Black Coral, Antipathes wollasti, and Diver, El Hierro, Canary Islands, Spain, Atlantic Ocean

Red Gorgonia, Paramuricea clavata, and Underwater Photographer, Islas Medas, L'Estartit, Costa Brava, Spain, Mediterranean Ocean

Red Gorgonia, Paramuricea clavata, and Mediterraneanfairy basslet, Anthias anthias, Islas Medas, L'Estartit, Costa Brava, Spain, Mediterranean Ocean

Red Gorgonia, Paramuricea clavata, Mediterraneanfairy basslet, Anthias anthias, and Diver, Islas Medas, L'Estartit, Costa Brava, Spain, Mediterranean Ocean

Red Gorgonia, Paramuricea clavata, and diver, Islas Medas, L'Estartit, Costa Brava, Spain, Mediterranean Ocean,

Red Gorgonia, Paramuricea clavata, and diver, Islas Medas, L'Estartit, Costa Brava, Spain, Mediterranean Ocean,

Red Gorgonia, Paramuricea clavata, White bream, Diplodus sargus sargus, Islas Medas, L'Estartit, Costa Brava, Spain, Mediterranean Ocean

Red Gorgonia, Paramuricea clavata, Islas Medas, L'Estartit, Costa Brava, Spain, Mediterranean Ocean

Red Gorgonia, Paramuricea clavata, White bream, Diplodus sargus sargus, Islas Medas, L'Estartit, Costa Brava, Spain, Mediterranean Ocean

Red Gorgonia, Paramuricea clavata, and Mediterraneanfairy basslet, Anthias anthias, Islas Medas, L'Estartit, Costa Brava, Spain, Mediterranean Ocean

Wire Coral Shrimps, Pontonides unciger, Bootless bay, Lolata Island, Port Moresby, National Capital District, Papua New Guinea

Wire Coral Shrimps, Pontonides unciger, Bootless bay, Lolata Island, Port Moresby, National Capital District, Papua New Guinea

Commensal shrimp, Periclemenes sp., on unidentified octocoral, Loloata Island, Port Moresby, National Capital District Province, Papua New Guinea

Soft coral crab, Hoplophrys oatesii, Bootless bay, Lolata Island, Port Moresby, National Capital District, Papua New Guinea

Pygmy seahorse, Hippocampus bargibanti, Lolata Island, Port Moresby, National Capital District, Papua New Guinea

Divar and Gorgonia, Subergorgia mollis, Bootless bay, Lolata Island, Port Moresby, National Capital District, Papua New Guinea