black long spine sea urchin laying on a rock and looking around with its eye

africa african and animal animals aquaculture aquarium around australian bane black coral diadema diadematidae diadematoida echinoidea exotic eye grabaskeys hedgehog indo indopacific its laying life lime long longspined looking marine ocean pacific pet pets poisonous prickles prickly red reef reefs rock sea setosum spine spined spines toxic trade tropical underwater urchin urchins venomous water