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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.
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.
Echinometra oblonga, also called the oblong urchin or 'ina 'ele 'ele (ina= generic name for urchin, 'ele 'ele= blackish) in Hawaiian, is a very common rock boring urchin on shallow rocky shores of the tropical Indo-Pacific and Southern Africa.
Diadema paucispinum is a small sea urchin with very long, moveable spines which are slender and sharply pointed. They can be up to 25 cm (10 in) long and about four times the diameter of the test. The primary spines are bluish-black in colour, often with pale bands in younger individuals.
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Echinothrix is a genus of sea urchins which was first described in 1853 by Wilhelm Peters, ... Indo-Pacific coral reefs, from the Red Sea to Hawaii
This list of bird species introduced to the Hawaiian Islands includes only those species known to have established self-sustaining breeding populations as a direct or indirect result of human intervention. A complete list of all non-native species ever imported to the islands, including those that never became established, would be much longer.
Heterocentrotus are brightly colored tropical sea urchins with very thick spines that have given them the nickname "slate pencil urchins", named after slate pencil.. The genus consists of sea urchins with rounded (but slightly elliptical) test , with the peristome (mouth) located in the center of the oral surface (lower) and the periproct at ...