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Asthenosoma varium

Asthenosoma varium (Fire Urchin)
Fire Urchin Asthenosoma varium.jpg
Scientific classification
Kingdom: Animalia
Phylum: Echinodermata
Class: Echinoidea
Subclass: Euechinoidea
Superorder: Diadematacea
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 22 cm (8.7 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 color, has given it the common name Fire Urchin.

It plays host to the commensal shrimp Periclemenes colemani and the zebra crab, Zebrida adamsii.



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Wikipedia

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