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Underwater view of red beadlet anemone, Mediterranean sea, Corsica, France
Sun Coral Tubastraea faulkneri is a large polyp stony coral from the family Dendrophyliidae. The species occurs all over the tropical Indo-Pacific Ocean in a wide depth range of 3-225 meters, often in greater densities on vertical walls and caves. \nThese corals are slow growers and they do not contribute to coral reef development. Unlike many tropical corals, they are azooxanthellate or non-photosynthetic, meaning that they do not live in symbiosis with zooxanthellae in their tissues, allowing them to grow in complete darkness as long as they can capture enough food, usually plankton. \nThey extend their translucent tentacles like these specimen during the late evening and the night, while during the day the tentacles are completely withdrawn. \nTriton Bay, West Papua Province, Indonesia, 3°54'2.454 S 134°6'23.7 E at 14m depth
Stalked kelp Ecklonia radiata and yellow nipple sponges scattered on sea floor. Location: Leigh New Zealand
Pachycerianthus fimbriatus is a cerianthid anemone that burrows in substrate and lives in a semi-rigid tube made of felted nematocysts. The tube-dwelling anemone contains stinging cells or nematocytes along its tentacles, however, the cells are not toxic to humans. Monterey Bay, California. Cnidaria.
An underwater image of a yellow sponge
Sea life Salp and Orange Gorgonian coral from scuba diver point of view
Dahlia Anemone taken in the Clyde, Scotland.
Soft corals near Bird Rock. Catalina Island, California.
A white color Feather-duster worm or giant fanworm (Sabellastarte longa) underwater
Indian Feather Duster Worm Sabellastarte spectabilis occurs in the tropical Indo-Pacific Ocean from the Arabian Sea to Hawaii in intertidal and subtidal reefs in a depth range from 3-30m. It is quite a large species, with a tube up to 30cm and a single crown of about 10cm in diameter, feeding by filtering plankton and organic particles from the water column. \nAs a defence mechanism, these creatures are able to quickly retreat into their tubes, when disturbed by potential predators. It may come as a surprise, but Sabellastarte has eyes! \nCrowns of this species often have a banded pattern in a variety of colors including browns, red, white and yellow. Yellow  like this specimen  is the rarest color for this species. \nTengah Island, Indonesia, 5°8'44.496 S 132°0'46.254 E at 8m depth by night
Close view of sea anemone in Oregon Coast Aquarium's \
Balanophyllia elegans, the orange coral or orange cup coral, is a species of solitary cup coral, a stony coral in the family Dendrophylliidae. An azooxanthellate species, it does not contain symbiotic dinoflagellates in its tissues. Monterey Bay, California.
Tube anemones grasp at plankton from the seafloor of a kelp forest in Monterey Bay, California. Kelp forests throughout California harbor extraordinary marine biodiversity.
Underwater photography of tropical reef  species in Papua New Guinea
An underwater image of cloud sponges (Aphrocallistes vastus)
Sea life  Yellow soft coral from scuba diver point of view
A vibrant Plumose Anemone photographed scuba diving in southern British Columbia.
Floating sea weed (Codium Fragile)
Actinia mediterranea
Deep water mushroom soft coral, Heteropolypus ritteri is a genus of soft corals in the family.  Monterey Bay, California. Alcyoniidae.
Mediterranean fan worm Sabella spallanzanii next to brown sea weeds covered with fine sediment.
Sea anemones off the west coast of Vancouver Island.
Polyp of Leptopsammia pruvoti
Sea life Underwater sea star - starfish Scuba diver point of view
A white color Feather-duster worm or giant fanworm (Sabellastarte longa) underwater
Orange Cup Coral Tubastraea coccinea occurs in tropical and subtropical Western Atlantic and Indo-Pacific in a depth range from 1-37m. This large-polyp stony coral is not a reef building species. The coral extends beautiful translucent tentacles at night. Tubastraea coccinea does not contain zooxanthellae in its tissues as many tropical corals do, allowing it to grow in complete darkness as long as it can capture enough food.\nThis large colony has fully open polyps during the day, \nbecause they are on the side facing away from the sun under a ledge. \nTriton Bay, Kaimana Regency, West Papua Province, Indonesia\n3°54'50.604 S 134°6'0.828 E at 6m depth
A brightly colored Cup coral colony, Tubastrea sp., grows in Raja Ampat, Indonesia. This equatorial area is known as the heart of the Coral Triangle due to its incredible marine biodiversity.
Anthopleura xanthogrammica, or the Giant Green Anemone, is a species of intertidal sea anemones, of the family Actiniidae. Other common names: Green Surf Anemone, Giant Green Sea anemone, Green Anemone, Giant Tidepool Anemone, Solitary Anemone, and Rough Anemone \n Salt Point State Park; California;
Peacock's tail brown alga Padina pavonica underwater in the Mediterranean sea, Spain
Small Cactus Coral off the coast of Roatan
Free Images: "bestof:Ceriantheopsis americanus.jpg es Ceriantheopsis americanus en Georgia Gray's Reef National Marine Sanctuary 2014-10-02 19 35 01 http //www photolib noaa gov/..."
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