Mobula munkiana, commonly known as the manta de monk, Munk's devil ray, pygmy devil ray, or smoothtail mobula, is a species of ray in the family Myliobatidae. Its natural habitats are shallow tropical seas, and it is found primarily in the eastern Pacific Ocean, the Gulf of California, off the coast of Ecuador and Guatemala, and near the Galapagos Islands. Munk's devil ray was first described in 1987 by the Italian ecologist Giuseppe Notarbartolo di Sciara.