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Asthenosoma varium
Species of sea urchin / From Wikipedia, the free encyclopedia
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Asthenosoma varium is a sea urchin (an echinoderm, a member of the phylum that also includes star fish). Growing up to 25 cm (10 in) in diameter, it lives on sand and rubble sea bottoms in the Indo-Pacific, from the Red Sea to Australia and Southern Japan. Its venom tipped spines, with distinctive globular swellings below the tip, can inflict a painful sting if handled; the pain lasts as long as several hours. This capacity, perhaps coupled with its reddish-brown colour, has given it the common name fire urchin; other commonly used names are Pacific fire urchin, elusive sea urchin, variable fire urchin, and electric sea urchin.
Asthenosoma varium | |
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Scientific classification ![]() | |
Domain: | Eukaryota |
Kingdom: | Animalia |
Phylum: | Echinodermata |
Class: | Echinoidea |
Order: | Echinothurioida |
Family: | Echinothuriidae |
Genus: | Asthenosoma |
Species: | A. varium |
Binomial name | |
Asthenosoma varium (Grube, 1868) | |
It plays host to the commensal shrimps Periclimenes colemani and Allopontonia brockii, and the zebra crab, Zebrida adamsii.[1]