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Mediterranean purple sea urchin - Sphaerechinus granularis
Sea Urchin Echinoderm Underwater Sea life,  Macro abstract background. sea ​​urchin spines and teeth
Single purple sea urchin in the middle of coral reef tank in an aquarium
Beautiful sea flowers in underwater world with corals
Close-Up Of Sea Urchin On Rock In Sea
Russia, Animal, Animal Fin, Animal Themes, Animal Wildlife
Deep water mushroom soft coral, Heteropolypus ritteri is a genus of soft corals in the family.  Monterey Bay, California. Alcyoniidae.
An underwater image of a red sea urchin (Strongylocentrotus Franciscanus)
Cylinder anemone (Cerianthus membranaceus), also known as the coloured tube anemone, copy space
Sea Urchin Echinoderm shell texture. Underwater Sea life,  Macro abstract background.
Common Sea Urchin, Paracentrotus lividus, Cabo Cope Puntas del Calnegre Natural Park, Mediterranean Sea,  Murcia, Spain, Europe
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
Paracentrotus lividus is a species of sea urchin in the family Parechinidae commonly known as the purple sea urchin. It is the type species of the genus and occurs in the Mediterranean Sea and eastern Atlantic Ocean
Bioluminescent Coral Reef - Colorful purple/magenta sea life detail.
Spiny black sea urchin (Diadema setosum) grazing on algae in tropical coral reefs. Vital for reef ecosystem balance.
A vibrant sea urchin clings to a rock under the water’s surface.
Sea anemone in a dark blue water of aquarium. Marine life background.
colorful Anemone flower sea and coral
イソギンチャク
Tube anemone, Pachycerianthus fimbriatus is a cerianthid anemone that burrows in substrate and lives in a semi-rigid tube made of felted nematocysts. The anemone is often seen in bright orange to red. Monterey, California
Centrostephanus longispinus, the hatpin urchin, is a species of sea urchin in the family Diadematidae. There are two subspecies, Centrostephanus l. longispinus, found in the eastern Atlantic and Mediterranean Sea and Centrostephanus l. rubricingulus, found in the western Atlantic.
Sea Urchins, California. Strongylocentrotus purpuratus
underwater animal
Purple Sea Urchin Close Up Underwater Southeast Alaska
sea urchin shell in a row on pink background
Pink Veined Didemnum Didemnum membranaceum occurs in the tropical Indo-Pacific at least from Indonesia to Micronesia in a depth range from 5 to 30m. \nColonial ascidians, or sea squirts, are sessile marine invertebrates forming colonies of interconnected zooids that share a common tunic. They filter feed using specialized siphons and reproduce both sexually and asexually, often via budding. They form striking colonies with awesome zooid arrangements, like this Colonial Ascidian Didemnum membranaceum. \nThe small holes are inhaling pores. The large holes surrounded by white areas are the exhaling orifices. \nWhile ecologically important as filter feeders and habitat providers, some colonial ascidians can become invasive, impacting ecosystems and fouling marine structures. \nLembeh Strait, North Sulawesi, Indonesia \n1°28'56.3943 N 125°15'15.59 E at 5m depth
Sea urchin in the arctic
Close up of purple sea urchin, Strongylocentrotus purpuratus. Threadlike tube feet can be seen between the spines.
Mediterranean purple sea urchin - Sphaerechinus granularis
Common octopus under the water surface. Mediterranean sea.
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