The leafy seadragon (Phycodurus eques) is the only member of the genus Phycodurus and is a marine fish in the family Syngnathidae, which includes seadragons, pipefish, and seahorses.[2]
Much like the seahorse, the leafy seadragon's name is derived from its resemblance to another creature (in this case, the mythical dragon). While not large, they are slightly larger than most seahorses, growing to about 20–24 cm (8–9.5 in). They feed on plankton and small crustaceans.