diadema setosum species of long-spined mildly venomous sea urchin belonging to the family diadematidae. hedgehog with five dots.

animal aquarium aquatic background beach beautiful beauty black blue closeup color colorful coral dangerous deep diadema dive diving environment exotic eye fish island life long longspine macro marine natural nature ocean red reef saltwater scuba sea setosum snorkeling spine spiny sun tropical undersea underwater urchin water wild wildlife