The deep sea dragonfish lives in the deep sea. They are about six inches long and wide. Deep sea dragonfish have very long teeth. Deep sea dragonfish have a little barbel on the end of its head so the deep sea dragonfish can see its food and enemies. They are normally called scale less dragonfish because they don't have any scales. Dragon fish are furious. Besides its deadly actions, it is a really small fish. Deep sea dragonfish has a photophores on its side. Sometimes deep sea dragonfish come close to the surface to attack. On the belly of them there are glowing blue lights used for counter illumination. There are other lights on the deep sea dragonfish that are used to search for prey.