It resembles a fish head without a tail, and its main body is flattened laterally. It is native to tropical and temperate waters around the world. The species belongs to the Mola genus, one of three in the Molidae family. Adults typically weigh between 247 and 1,000 kg (545 and 2,205 lb). It was misidentified as the heaviest bony fish, which was actually a different species, Mola alexandrini. The ocean sunfish or common mola ( Mola mola) is one of the largest bony fish in the world.