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I know the one is an urchin, but what is that ball down amongst the spines that is in the picture?
awesome shots jim especially those gobis.
arco point i presume?
Since you asked, it is the anus of the urchin. :mooner:
Great shots, after learning what those balls in the urchin are, I might imply some individuals I know remind me of those little balls that amongst the urchins.