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View of the Caribbean coral reef with the yellow tube sponge in Grand Cayman - Cayman Islands
A large barrel sponge, Xestospongia testudinaria, grows on a reef slope near Komodo National Park, Indonesia. These large filter feeders are common throughout Indo-Pacific reefs.
Giant Sponges can grow to impressing size. These specimen of filter animals live under a rock overhang at the north side of Rozengain Island, Banda Sea, Indonesia, 4°34'41.37 S 130°1'40.194 E at 20m depth
Ancient glass sponges in the agamemnom channel, Sunshine Coast, British Columbia
Colorful, picturesque coral reef at the bottom of tropical sea, great sea tube sponge, underwater landscape
Yellow-tube sponge (Aplysina fistularis) on the coral reef of Guadeloupe (Caribbean, France)
Yellow-green Sponge (Crella cyathophora) on reef in the deep in morning time, on blue water background, Red sea, Egypt
Sea life, coral reef  Underwater scene with fire coral  and rose tube sponge Scuba Diver Point of View.
Sea Sponge, Coral Reef, Caribbean Sea, Playa Girón, Cuba, América
An underwater tropical wonderland featuring Sea Sponge as well as a couple of other different species in all their various colours in super clear water
Giant Barrel Sponge Xestospongia testudinaria occurs widely distributed in the tropical Indo-Pacific in a depth range from 2-50m. Specimen in the intertidal zones remain small with 10-20cm diameter, below they can grow to impressing sizes, measuring up to 2.4 meters in height and width.  \nThe sponge is covered with several Sea Cucumbers Synaptula lamperti, found in the Western Pacific including the coasts of Indonesia, Papua New Guinea, Micronesia and the Philippines. The species is very common on coral reefs, both on the exposed and the inner slopes. It is a detrivore that specifically feeds on or around living sponges. \nConsidering the sea cucumbers maximum size of 20cm, the barrel sponge might extend more than 1m from the reef slope.  \nBanda Island, Indonesia, 4°30'45.41 S 129°56'7.75 E at 13m depth
coral reef with beautiful great orange sponge on the bottom of tropical sea  on blue water background
Giant red coral groups
Coral reef and marine sponge in the Caribbean
Sea life Orange sea sponge aquatic organism, Red Hard coral and Yellow Tube sponge from scuba diver point of view Underwater photo
Yellow Sea Sponge, Bottom of Tropical Sea, Underwater
Spiral pattern
Callyspongia plicifera, the azure vase sponge, is a species of sea sponge belonging to the family Callyspongiidae
View of the Caribbean coral reef with the yellow tube sponge in Grand Cayman - Cayman Islands
Colorful, picturesque coral reef at the bottom of tropical sea, great sea tube sponge, underwater landscape
These sponges are NOT photoshopped, that's the real color! The whole area is full of Bubble Tip Anemones Entacmaea quadricolor. A lot of Acropora sp. hard corals. Some Tropical Striped Triplefin Helcogramma striatum (4 cm = 1.6 inches) are there. A dive in Indonesia without them is quite rare! Many Stinging Hydrozoan Aglaophenia cupressina, they are useful to indicate good buoyancy to divers, as bad one is painful! South West side of Pura Island, Pantar Strait, Alor, Indonesia, 8°19'8\
a diver exploring a reef on the island of Curacao
Batanta island, Raja Ampat, West Papoua, Indonesia
Brown tube sea sponge or agelas conifera with zoanthids, undersea photo in caribbean sea
Salad Coral.  Sea life  Macro, close up. Soft Coral reef  Underwater photo Scuba Diver Point of View Red sea
Colorful red finger sponge and brown tube sponges on Belize reef
Giant barrel sponge (Xestospongia muta) with small leaf hanging vine (Halimeda goreaui), spiny sea fan, and mesh sea fan in background.
Coral reef with great yellow sea sponge at the bottom of tropical sea on a background of blue water, underwater
Petrosia hoeksemai (family Petrosiidae) occurs in the Indonesian Western Central Pacific in a depth range from 3 to 20m. \nEven if the shape is very different from Giant Barrel Sponge Xestospongia testudinaria, the two species are closely related.\nBanda Island, between Lavaflow 2 and 3, Indonesia, \n4°30'21.233 S 129°52'33.819 E at 16m depth
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