Looking like a smaller, more awkward version of the more media-popular oarfish, the Mediterranean dealfish, or ribbonfish (Trachipterus trachypterus), is a close relative to the oarfish. As in the oarfish, its dorsal fin is a deep red in color. This carnivore feeds on mid-water fishes and squid, and depends on its large size for protection against predators. Its eggs and larvae are often found in Mediterranean waters but there is little information on its reproductive behavior. The Mediterranean dealfish family contains 11 species; all are rare and their biology is poorly known.