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  2. Diadema antillarum - Wikipedia

    en.wikipedia.org/wiki/Diadema_antillarum

    Diadema antillarum. Diadema antillarum, also known as the lime urchin, black sea urchin, or the long-spined sea urchin, [2] is a species of sea urchin in the family Diadematidae. This sea urchin is characterized by its exceptionally long black spines. It is the most abundant and important herbivore on the coral reefs of the western Atlantic and ...

  3. Paracentrotus lividus - Wikipedia

    en.wikipedia.org/wiki/Paracentrotus_lividus

    Toxopneustes concavus L. Agassiz & Desor, 1846. Toxopneustes lividus (Lamarck, 1816)[1] 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. [1]

  4. Echinocyamus pusillus - Wikipedia

    en.wikipedia.org/wiki/Echinocyamus_pusillus

    Spatagus pusillus O.F. Müller, 1776. Echinocyamus pusillus, commonly known as the pea urchin or green urchin, is a species of sand dollar, a sea urchin in the family Fibulariidae, native to the northeastern Atlantic Ocean and the Mediterranean Sea. It buries itself in gravel or coarse sand at depths down to about 1,250 m (4,000 ft).

  5. Sphaerechinus granularis - Wikipedia

    en.wikipedia.org/wiki/Sphaerechinus_granularis

    Sphaerechinus granularis is a species of sea urchin in the family Toxopneustidae, commonly known as the violet sea urchin, [2] or sometimes the purple sea urchin (though the latter is also a common name for a Pacific sea urchin Strongylocentrotus purpuratus). Its range includes the Mediterranean Sea and eastern Atlantic Ocean. [1]

  6. Cidaris cidaris - Wikipedia

    en.wikipedia.org/wiki/Cidaris_cidaris

    Cidaris cidaris is found in the eastern Atlantic Ocean and the Mediterranean Sea in deep water on coral, rock and gravel bottoms. Its range extends from Cape Verde, the Azores and the Canary Islands northwards to the Faroe Islands and Norway. It is also found on knolls and seamounts [1] at depths down to about 1,800 metres (5,900 ft).

  7. Sea urchin - Wikipedia

    en.wikipedia.org/wiki/Sea_urchin

    Sea urchin. Sea urchins or urchins (/ ˈɜːrtʃɪnz /) are typically spiny, globular animals, echinoderms in the class Echinoidea. About 950 species live on the seabed, inhabiting all oceans and depth zones from the intertidal to 5,000 metres (16,000 ft; 2,700 fathoms). [1] Their tests (hard shells) are round and spiny, typically from 3 to 10 ...

  8. Centrostephanus longispinus - Wikipedia

    en.wikipedia.org/wiki/Centrostephanus_longispinus

    Centrostephanus longispinus. 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. [1][2]

  9. Diadema savignyi - Wikipedia

    en.wikipedia.org/wiki/Diadema_savignyi

    Diadema savignyi is a species of long-spined sea urchin belonging to the family Diadematidae. Common names include long-spined sea urchin, black longspine urchin and the banded diadem. It is native to the east coast of Africa, the Red Sea, the Indian Ocean and western Pacific Ocean. It was first described in 1829 by the French naturalist Jean ...