The overall shape is nearly round head, large body fortress header barbed many color body mess, you look like a stone, the torso pestle and barbed small. , thick skin and the flake detail some kind no scales, fins, longStem rigid dorsal fin, large pectoral fins, and ventral fins are stiff stalk thorn. The stem fin very poisonous. The venom glands of the stem fin surface layer solid under staying around the center.The poison is released when the membranes spines tear. Danger caused by the touch rod rigid fins various incentives and thorn the head. Because stone fish like stay calm. Do look like stones.