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View Full Version : ID please


KennyKen
02-10-2009, 01:18 AM
My friend just got back from maui, and said these were all over the rocks on the east shore.

Any ideas...
Looks like some sort of anemone.

Keri
02-10-2009, 01:20 AM
Weird!! Is it hard or squishy?

KennyKen
02-10-2009, 01:22 AM
squishy apparently.

Kabong
02-10-2009, 04:43 AM
Sheild Urchin (Colobocentrotus atratus)

justinl
02-10-2009, 06:28 AM
cool animal! when i first saw, it i thought i saw six equal radial segments, so i disregarded the possibility that it was an echinoderm (who have pentaradial symmetry). but that definitely is a shield urchin (according to google) so maybe the pentaradial symmetry is internal.