The devil fish or giant devil ray (Mobula mobular) is an endangered species of eagle ray in the family Myliobatidae. It is currently listed as endangered, mostly due to bycatch mortality in unrelated fisheries. The devil fish is larger than its close relative the lesser devil ray. It grows to a maximum recorded length of 5.2 metres, making it one of the largest rays. It possesses a spiny tail. Devil fish are most common in the Mediterranean Sea and can be found elsewhere in the Eastern Atlantic Ocean, off the southwest coast of Ireland and south of Portugal, and possibly in the northwest Atlantic. They predominantly prefer deep waters. Order: Myliobatiformes, Family: Myliobatidae, Synonyms: Raia mobular (Bonnaterre, 1788), Mobula diabolus.