A white-v hydroid crab (Hyastenus borradailei), feeding on a colony of green tube coral, Fiji, South Pacific, Pacific

Cave coral (Tubastrea sp.) (Dendrophyllidae) polyps extended and feeding at night, Queensland, Australia, Pacific

Coral Reef with Salad Coral, Pectinia lactuca, Kai Islands, Moluccas, Indonesia

Coral Reef with Lettuce Coral, Turbinaria mesenterina, Kai Islands, Moluccas, Indonesia

Coral Reef with Salad Coral, Pectinia lactuca, Kai Islands, Moluccas, Indonesia

Coral Reef with Lettuce Coral, Turbinaria mesenterina, Kai Islands, Moluccas, Indonesia

Scuba Diver over Coral Reef, Marovo Lagoon, Solomon Islands

Detail of coral polyps, Tubastrea sp., growing on a healthy reef in Raja Ampat, Indonesia.

Thousands of scalefin anthias, Pseudanthias squamipinnis, hover over green coral, Tubastrea micrantha, Puerto Galera, Mindoro, Philippines.

Astroides (Astroides calycularis), Mediterranean Sea, Portofino, Liguria, Italy, Europe

Lettuce Coral, Stone Coral, Turbinaria mesenterina, Ulong Channel, Micronesia, Palau

Lettuce Coral, Stone Coral, Turbinaria mesenterina, Ulong Channel, Micronesia, Palau

Yellow scroll coral, coral lettuce;Turbinaria reniformis). Coral reef. Ras Muhammad National Park;Sharm Al Sheikh - Raas Mohammed) and Tiran Strait. Red Sea, Egypt.

Yellow scroll coral, coral lettuce;Turbinaria reniformis). Coral reef. Ras Muhammad National Park;Sharm Al Sheikh - Raas Mohammed) and Tiran Strait. Red Sea, Egypt.

Yellow scroll coral, coral lettuce;Turbinaria reniformis). Coral reef. Ras Muhammad National Park;Sharm Al Sheikh - Raas Mohammed) and Tiran Strait. Red Sea, Egypt.