Solmissus is a genus of jellyfish, the dinner plate jellies. It is unique in that it actively hunts for prey as opposed to passively waiting for plankton to pass by. They are found in the deep waters of Monterey Bay, California. They are most likely to be found in the deep sea, mid water (2,297–3,281 ft (700–1,000 m)). They grow to be 8 in (20 cm) in diameter. This jelly feeds on gelatinous zooplankton, including salps and doliolids, ctenophores, other jellies, and copepods.