Posts Tagged "Diadem Sea Urchin from Thailand"

Diadem Sea Urchin; Diadema setosum

Posted by on Dec 18, 2011 in | 0 comments

The Diadem Sea Urchin is Koh Phangan’s most common echinoid. It also has the longest spines; another excellent reason to complete one of our PADI speciality diving courses in buoyancy...

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