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Scuba diving adventure.  Young man scuba diver, diving into the sea. Underwater turquoise lagoon. Happy teenage  joy into the crystal clear sea. Mediterranean beach. Summer.
Sea anemone at Birmingham National Sealife Centre
An electric blue fish swims among coral and sea urchins
Beautiful sea flowers in underwater world with corals
Spanish dancer - sea slug in Red Sea near Marsa Alam by night, Egypt
A featherduster worm attached to a soft coral opens in the current
Anemonia sulcata, or Mediterranean snakelocks sea anemone, is a species of sea anemone in the family Actiniidae from the Mediterranean Sea. Whether A. sulcata should be recognized as a synonym of A. viridis remains a matter of dispute
Deep water mushroom soft coral, Heteropolypus ritteri is a genus of soft corals in the family.  Monterey Bay, California. Alcyoniidae.
Sea life. Underwater abstract , spiral tubeworm - sabella spallanzanii , Close-up , with very shallow DOF
Beautiful wild fish (Japanese moss blenny) swimming in the blue sea
Underwater photo from a scuba dive in Thailand.
Tubifer Cardinalfish Siphamia tubifer (ex. Siphamia versicolor) occurs in the tropical Indo-West Pacific from the Red Sea south to Madagascar and east through the Maldives, Sri Lanka and India to the Andaman Sea Islands and to Western Australia, north to the Ryukyus andthroughout the Indo-Malayan region to Vanuatu in a depth range from 1 to 100m, usually to 18m depth, max. length 7cm. \nThe species forms small groups with long-spined urchins, but is also found among the spines of Acanthaster planci. Siphamia tubifer feeds on zooplankton and small invertebrates. The specimen encountered in this Blue Spotted Sea Urchin Astropyga radiata is dark brown. Depending on the phase the species can be striped instead.\nBlue Spotted Sea Urchin Astropyga radiata occurs in the tropical Indo-Pacific Ocean from the African coast to Australia and to Hawaii in a depth range from 0 to 60m, usually 10 to 30m, max. test diameter 20cm. \nThe species is often found in lagoons and bays where the substrate is sand, shingle or coral rubble. Sometimes many urchins collect together in one locality in dense aggregations. \nLembeh Strait, North Sulawesi, Indonesia \n1°28'47.814 N 125°15'1.26 E at 23m depth
Peacock mantis shrimp on the reef in maldives
A Caribbean stingray swimming off to the right of the image, there is a cloud of sand behind it.
Sea Anemone at Monterey Bay Aquarium in California - beautiful colors and textures
An underwater shot of a spotted sea cucumber laying on coral reef. Taken in Kauai, Hawaii, during the day.
Sea life Spiral tubeworm Underwater beauty
Colourful Soft Coral growth under Busselton Pier, Western Australia, Australia
Behold the mysterious elegance of an octopus as it gracefully navigates the ocean depths, its tentacles dancing in the currents, a symbol of intelligence and adaptability.
A blenny going out of its hiding place in the French Mediterranean Sea
Day Octopus  resting on corals of Bali.
emperor angelfish, Mutton snapper,French angelfish, sea horse, Cuttlefish , stone fish
Black sea urchin (Arbacia lixula) undersea, Aegean Sea, Greece, Skiathos island, Vasilias beach
The Red Urchin, blue-spotted urchin; Fire Urchin or False Fire Urchin, Astropyga radiata, is an urchin, with a test (shell) diameter of about 20 cm. It is found in the Indo-Pacific region. Maui Island, Hawaii
Underwater Red Scorpionfish fish deep in sea Sea life Mediterranean sea Scorpaena scrofa Scuba diver point of view
Black feather star on the coral reef
Beautiful wild fish (Ghost Pipefish) swimming in the blue sea
Tiger Anemone, Schmarotzeranemone (Nemanthus annamensis)
Sea urchin Evechinus chloroticus on rock covered with layer of sediment and some vegetation.
Horned Blenny Fish looking out of hole, macro underwater photography. Australia.
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