Constantinos Petrinos / Yellow stripe clingfish (Diademichthys lineatus) living in association with the Fire Urchin (Astropyga radiata) Lembeh Strait, North Sulawesi, Indonesia.
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Constantinos Petrinos / Aggregation of Blue-spotted urchins (Astropyga radiata) Lembeh Strait, North Sulawesi, Indonesia.
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Constantinos Petrinos / Aggregation of Blue-spotted urchins (Astropyga radiata) Lembeh Strait, North Sulawesi, Indonesia.
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Constantinos Petrinos / Fire urchin (Astropyga radiata) close up, Lembeh Strait, North Sulawesi, Indonesia.
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Constantinos Petrinos / Yellow stripe clingfish (Diademichthys lineatus) living in association with the Fire Urchin (Astropyga radiata) Lembeh Strait, North Sulawesi, Indonesia.
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Alex Mustard / Banggai cardinalfish (Pterapogon kaudemi) swimming over a long-spined sea urchin (Astropyga radiata) Bitung, North Sulawesi, Indonesia. Lembeh Strait, Molucca Sea.
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Georgette Douwma / RF - Long-spined sea urchin (Astropyga radiata). Lembeh Strait, North Sulawesi, Indonesia. (This image may be licensed either as rights managed or royalty free.)
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Georgette Douwma / Flamboyant cuttlefish (Metasepia pfefferi) walking across the sand past a Long spined sea urching (Astropyga radiata) Lembeh Strait, Sulawesi, Indonesia.
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Constantinos Petrinos / Urchin carrier crab (Dorippe frascone) carrying a Fire Urchin (Astropyga radiata) for camouflage and protection. Lembeh Strait, North Sulawesi, Indonesia.
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Henley Spiers / Coleman shrimp (Periclimenes colemani ) pair, resting within their Fire urchin (Astropyga radiata) host, Anilao, Mabini, Philippines, Pacific Ocean.
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Georgette Douwma / Composite image of echinoderms on black background. top left to right: Pineapple sea cucumber (Thelenota ananas), Yellow sea cucumber (Colochirus robustus), Frianti's starfish (Nardoa frianti),...
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David Fleetham / Blue-spotted sea urchin (Astropyga radiata), rarely seen in Hawaii, Hawaii, Pacific Ocean.
