Asthenosoma varium
Species of sea urchin / From Wikipedia, the free encyclopedia
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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) | |
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.
It plays host to the commensal shrimps Periclimenes colemani and Allopontonia brockii, and the zebra crab, Zebrida adamsii.[1]