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Asthenosoma varium

Grube, 1866

Fire Urchin

Classification
Identification
Biology
Distribution
Links
Bibliography

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Classification   {MSG_BIOLOGY_LISTE_CATEGORIES}
Latin name : Asthenosoma varium (Grube, 1866)
Synonyms :
Classification : Echinoidea [ Leske, 1778 ] ( Urchins )
 
Name : Oursin t?te d'épingle
Name : Fire Urchin
Fire Urchin, Pinhead Sea Urchin
Identification   {MSG_BIOLOGY_LISTE_CATEGORIES}
Main identification characters
Family Echinothuriidae. Size : up to 170 milimeters in diameter(test only). Nocturnal. Walks on spines and/or tube feet. Extremely toxic avoid contact with sharp spines. Has monocyclic apical disc, flexible rather than rigid test, and trigeminate ambulacra. Has shallow buccal notches. Its aboral spines are covered in a thick fleshy sac containing toxins.
Possible confusions
Feel free to update this datasheet and complete this data.
Biology   {MSG_BIOLOGY_LISTE_CATEGORIES}
Feed
Omnivore - takes most foods
Cycle of life / Reproduction
Feel free to update this datasheet and complete this data.
Interaction with other species
Sometimes has commensal shrimp (allopontonia iaini) and the snail(Leutzenia Asthenosomae).
Distribution   {MSG_BIOLOGY_LISTE_CATEGORIES}
Habitat

Rocks
Found in sandy, rubble beds.
Geographical distribution
Indo-West Pacific; Red Sea to Indonesia.
Links   {MSG_BIOLOGY_LISTE_CATEGORIES}
Websites :
http://digilander.libero.it/scubabob/Komodo/Echino/riccio01.html
http://www.divegallery.com/urchin_fire.htm
http://www.ird.nc/BASE/BIODIVERSITE/orig-dta/echinode/genre/gen_102.ht [...]
http://www.reefimages.com/cgi-reefimages/page.cgi?list=Seastars&filena [...]
http://www.wetwebmedia.com/rsrfslp4.htm

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Bibliography   {MSG_BIOLOGY_LISTE_CATEGORIES}
N/A
Data sheet written by Christophe Naslain , 3/02/2003

Updates :
Christophe Naslain - 03/02/2003
Kevin Clarke - 27/07/2005


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