Caribbean Coral Reef, Caribbean Sea, Dominica

Yellow Tube Sponges in Coral Reef, Aplysina fistularis, Caribbean Sea, Dominica

Caribbean Coral Reef, Caribbean Sea, Dominica

Coral Reef with Barrel Sponge, Xestospongia testudinaria, Kai Islands, Moluccas, Indonesia

Fan Worm on red Sponge, Spirographis sp., Caribbean Sea, Dominica

Tube Sponges in Coral Reef, Aplysina fistularis, Caribbean Sea, Dominica

Fan Worm on red Sponge, Spirographis sp., Caribbean Sea, Dominica

Soldierfish on Coral Reef, Myripristis jacobus, Caribbean Sea, Dominica

Caribbean Coral Reef, Caribbean Sea, Dominica

Shoal of Neon Fusilier, Pterocaesio tile, Kai Islands, Moluccas, Indonesia

Caribbean Coral Reef, Caribbean Sea, Dominica

Caribbean Coral Reef, Caribbean Sea, Dominica

Caribbean Coral Reef, Caribbean Sea, Dominica

Caribbean Coral Reef, Caribbean Sea, Dominica

A young graysby (Cephalopholis cruentata) in an azure vase sponge, Little Cayman Island.

Purple stove-pipe sponge (Aplysina archeri), with boat in background, Curacao.

Group of barrel sponge in the deep reefs of the Banda Sea, Indonesia.

Barrel sponge in the reef with fishes in the Banda Sea, Indonesia.

Diver looks on at sponges, coral and crinoids in a colorful Komodo seascape, taken at Cannibal Rock, Horseshoe Bay, Komodo National Park, Indonesia.

Top view of a pnk barrel sponge looking like a saucer against the cyan reef bottom, Cenderawasih Bay, West Papua, Indonesia.

Crinoids cling to a large sponge on a healthy coral reef near the island of Sulawesi, Indonesia. This beautiful, tropical region is home to an incredible variety of marine life.

Detail of an encrusting sponge growing on a reef in Komodo National Park, Indonesia. This tropical region in Indonesia is known for its spectacular coral reefs and high marine biodiversity.

Boring Sponge (Cliona celata), Gouliot Caves, Sark, Channel Islands

Squirrelfish (Holocentrus adscensionsis) finds shelter near a large Barrel sponge.

Sabre squirrelfish;Sargocentron spiniferum) having found refuge in a huge barrel sponge;Xestospongia testudinaria) at the mouth of the S-shaped pass at a depth of 50 meters. Mayotte

Dactylospongia metachromia, Rangiroa, French Polynesia