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  2. Colobocentrotus atratus - Wikipedia

    en.wikipedia.org/wiki/Colobocentrotus_atratus

    Colobocentrotus atratus, commonly named the helmet urchin or shingle urchin, is a species of sea urchin in the family Echinometridae. [1] In Hawaii, it is called hāʻukeʻuke . It is found on wave-swept intertidal shores in the Indo-West Pacific , particularly on the shores of Hawaii .

  3. 32 types of saltwater fish for your aquarium - AOL

    www.aol.com/32-types-saltwater-fish-aquarium...

    Mesmerizing, kaleidoscopic, and fabulously exotic, the huge variety of types of saltwater fish to pick for your aquarium will give you a visual taste of the underwater ocean world. 32 types of ...

  4. List of marine aquarium invertebrate species - Wikipedia

    en.wikipedia.org/wiki/List_of_marine_aquarium...

    Found burrowing in mud or sand flats in the wild, they need a deep sand bed in their aquarium. 60 cm (23.6 in) Sea spider [3] Pycnogonids: No: Not collected for the aquarium trade, but occasionally seen on live rock and corals as a hitchhiker. They can be pests in a reef tank, preying on soft coral, sponges and anemones. 0.2–50 cm (0.1–19.7 in)

  5. Tripneustes gratilla - Wikipedia

    en.wikipedia.org/wiki/Tripneustes_gratilla

    Tripneustes gratilla, the collector urchin, is a species of sea urchin. Collector urchins are found at depths of 2 to 30 metres (7 to 100 ft) in the waters of the Indo-Pacific, Hawaii, the Red Sea, and The Bahamas. They can reach 10 to 15 centimetres (4 to 6 in) in size.

  6. Sea urchin - Wikipedia

    en.wikipedia.org/wiki/Sea_urchin

    Sea urchins or urchins (/ ˈ ɜːr tʃ ɪ n z /) 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]

  7. Mespilia - Wikipedia

    en.wikipedia.org/wiki/Mespilia

    Mespilia globulus, the globular sea urchin, sphere sea urchin, or tuxedo urchin (trade name), is a sea urchin occurring in tropical shallow reef habitats. [1] The specific name refers to a small ball or spherule, describing its overall shape/morphology. [1] It is the only species in the genus Mespilia. [2]

  8. Diadema antillarum - Wikipedia

    en.wikipedia.org/wiki/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 Caribbean basin.

  9. Sea urchin die-off threatens reefs from Florida to Caribbean ...

    www.aol.com/sea-urchin-die-off-threatens...

    The first time marine scientist Don Levitan saw the reefs near the U.S. Virgin Islands, they were blanketed in black — the coral covered by thousands of urchins spiked with sharp, poisonous ...