Black long spine urchin at coral reef

black long spine urchin coral reef diadema setosum animal aquatic marine marine life nature ocean underwater water wildlife colorful diving life natural scuba beautiful black blue color coral fish sea life sea urchin tropical animals aquatic life background danger delicious diadema eatable echinodermata environment fauna habitat invertebrate invertebrates long spined long spined sea urchin long-spined black sea urchin long-spined urchin longspine organisms porcupine sea urchin seafood snorkeling