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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]
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.
Toxopneustes pileolus, commonly known as the flower urchin, is a widespread and commonly encountered species of sea urchin from the Indo-West Pacific.It is considered highly dangerous, as it is capable of delivering extremely painful and medically significant stings when touched.
Three sea urchins are sold for 1000 Chilean Pesos. Known locally in Chile as the 'Erizo rojo' (red urchin), it is harvested commercially by fishermen and is an ingredient in Chilean cuisine. Over-exploitation , its conspicuousness and lack of official harvest control means that this urchin is relatively rare in some parts of its range.
Purple sea urchin can refer to one of several species of sea urchin: Arbacia punctulata , a species of sea urchin from the family Arbaciidae commonly known as the Atlantic purple sea urchin Paracentrotus lividus , a species of sea urchin in the family Parechinidae commonly known as the purple sea urchin
Toxopneustes roseus is similar in appearance to the more widespread flower urchin, Toxopneustes pileolus.It can be distinguished by having a rigid "shell" that is a solid pink, red, or purple in color, in contrast to the variegated coloration of the test of Toxopneustes pileolus.
These are greenish in colour with paler bases and darker, often violet, tips. This urchin grows to a diameter of 5 centimetres (2.0 in) with the longest spines being 3 centimetres (1.2 in). [2] It looks very similar to the rock-boring urchin Echinometra lucunter, but the dark tips and the greater length of the spines are distinctive. [3]
Strongylocentrotus purpuratus is a species of sea urchin in the family Strongylocentrotidae commonly known as the purple sea urchin. It lives along the eastern edge of the Pacific Ocean extending from Ensenada , Mexico , to British Columbia , Canada . [ 1 ]