Diadem Sea Urchin; Diadema setosum
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...
Read MoreThe 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...
Read More