About Sea Urchin
Echinozoa is a subphylum of free-living echinoderms in which the body is or originally was a modified globe with meridional symmetry. Echinozoans lack arms, brachioles or other appendages, and do not at any time exhibit pinnate structure. Their two extant classes are the sea urchins and the sea cucumbers.
Species in this group
Where to see it
Top-rated dive sites where divers have spotted Sea Urchin.
Ecuador, Puerto Ayora Galápagos National Park Marine Reserve
Best free snorkeling in Puerto Ayora, shallow bay with marine life.