The term 'Devil Fish' is used to refer to two different species of marine animals: the MANTA RAY (5 letters) and the Stingray (3 letters). Both species are large, flat-bodied fish that inhabit tropical and subtropical waters around the world. The MANTA RAY is the larger of the two, with a wingspan of up to 7 meters, while the Stingray is smaller, with a wingspan of up to 1.5 meters. Both species have venomous barbs on their tails, which they use for defense. They are also both filter feeders, meaning they feed on plankton and other small organisms.