เม่นทะเล – Echinoidea
Long-spined urchin - Centrostephanus longispinus - Like a star
White tip sea urchin - Sphaerechinus granularis - Under the rock
White tip sea urchin - Sphaerechinus granularis
Black sea urchin - Arbacia lixula - In the sun
Long-spined urchin - Centrostephanus longispinus - At close range
Long-spined black sea urchin - Diadema setosum - Look me in the eye
Long-spined urchin - Centrostephanus longispinus - In the spot light
Long-spined black sea urchin - Diadema setosum - Long spines
Long-spined black sea urchin - Diadema setosum
Long-spined urchin - Centrostephanus longispinus - Long spines
Black sea urchin - Arbacia lixula - Family
Black sea urchin - Arbacia lixula - On the rocks
