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226:. The primary spines are bluish-black in colour, often with pale bands in younger individuals. The shorter secondary ones are brittle and venomous and easily break off in the skin. There are photosensitive spots in the urchin's epidermis and if a shadow falls on the animal, it angles its secondary spines towards the intruder. These can cause a painful sting if they come into contact with bare skin. Near the apex of the test is a clearly visible
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this sea urchin is found on calcareous rocky shelves a few feet under the surface where it uses its spines to wedge itself into crevices and hollows in the rock. In Hawaii it is known as "wana" and is found on reef flats and gently shelving areas.
259:. One was originally considered to be limited to Hawaii but has now been found on Easter Island, Pitcairn, and Okinawa. The other one ranges from East Africa and Arabia to the Philippines and New Guinea. In shallow parts of the
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may help soften the spines. Surgical removal of spine tips that remain in the skin is difficult because of their fragility. Left alone they may gradually be absorbed into the tissues.
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is a small sea urchin with very long, moveable spines which are slender and sharply pointed. They can be up to 25 cm (10 in) long and about four times the diameter of the
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Skin contact with this sea urchin should be avoided. An injury caused by the secondary spines should first be soaked in hot water to deactivate the toxins and later
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Lessios, HA; Kessing, BD; Pearse JS (2001). "Population structure and speciation in tropical seas: global phylogeography of the sea urchin
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surrounded by an orange ring and raised on a small projection. Radiating from this are five narrow, bright blue lines.
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211:. It is found in the western Indo-Pacific Ocean and in Hawaii and other east Pacific islands.
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377:. Waikïkï Aquarium: University of Hawai‘i-Mänoa. 2009-09-01. Archived from
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as it crawls over the rocks. Despite its formidable defensive armoury,
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10.1554/0014-3820(2001)055[0955:PSASIT]2.0.CO;2
372:"Marine life profile: Long-spined venomous sea urchins"
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415:, 2 oursins du platier coralliaire"
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341:World Register of Marine Species
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697:Taxa named by Alexander Agassiz
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687:Fauna of the Pacific Ocean
692:Animals described in 1863
682:Fauna of the Indian Ocean
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41:Scientific classification
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234:Distribution and habitat
175:Centrechinus paucispinus
327:Kroh, Andreas (2013).
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194:long-spined sea urchin
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16:Species of sea urchin
677:Diadema (sea urchin)
485:Diadema paucispinum
413:Echinometra mathaei
409:Diadema paucispinum
331:Diadema paucispinum
285:Diadema paucispinum
273:Diadema paucispinum
257:Diadema paucispinum
243:Diadema paucispinum
220:Diadema paucispinum
189:Diadema paucispinum
150:Diadema paucispinum
132:D. paucispinum
25:Diadema paucispinum
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178:(A. Agassiz, 1863)
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613:Open Tree of Life
477:Taxon identifiers
405:DelarueBioMedia.
333:A. Agassiz, 1863"
281:filamentous algae
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447:(55): 955–975.
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384:on 2012-06-11
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141:Binomial name
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419:. Retrieved
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386:. Retrieved
379:the original
344:. Retrieved
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209:Diadematidae
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108:Diadematidae
98:Diadematoida
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626:SeaLifeBase
548:iNaturalist
417:(in French)
215:Description
671:Categories
421:2013-06-11
388:2013-06-11
346:2013-06-10
311:References
202:sea urchin
157:A. Agassiz
88:Echinoidea
441:Evolution
277:nocturnal
126:Species:
64:Kingdom:
58:Eukaryota
566:11726327
500:Q3147401
494:Wikidata
461:11430656
196:, is a
166:Synonyms
104:Family:
74:Phylum:
68:Animalia
54:Domain:
641:5963445
540:5842774
527:4710142
437:Diadema
305:vinegar
268:Ecology
261:Red Sea
204:in the
198:species
119:Diadema
114:Genus:
94:Order:
84:Class:
654:513224
638:uBio:
631:139095
618:312263
605:513224
592:186409
579:145530
553:121707
459:
299:Stings
291:on by
289:preyed
253:clades
206:family
192:, the
159:, 1863
649:WoRMS
561:IRMNG
514:3585T
382:(PDF)
375:(PDF)
337:WoRMS
600:OBIS
574:NCBI
535:GBIF
457:PMID
228:anus
224:test
522:EoL
509:CoL
449:doi
439:".
411:et
287:is
275:is
255:of
200:of
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445:55
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397:^
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
