Devils scorpionfish (Scorpaenopsis diabolus) can reach 30 cm (12 in) in length. It is also called the false stonefish and it is a bottom-dwelling fish sometimes partially covered with sediment. It is an ambush predator and feeds on passing prey such as invertebrates and small fish.
The Devils Scorpionfish flares its pectoral fins as a warning if disturbed by a potential predator. Its venomous dorsal spines can inflict a painful wound.