Mola ramsayi, known commonly as the southern ocean sunfish, southern sunfish, or short sunfish, is a fish belonging to the family Molidae. It is closely related to its congener, the larger and much wider known Mola mola, and is found in the Southern Hemisphere. It can be found basking on its side occasionally near the surface, which is thought to be used to re-heat themselves after diving in cold water for prey, recharge their oxygen stores, and attract seagulls to free them of parasites.