The Hydra is an enemy from Final Fantasy III. It is found around the center portal of the World of Darkness, as a rare enemy. It is one of several enemies dummied out of the NES version. The mob has surprisingly very few similarities between itself and a true Hydra. However, it is a palette-swap of Echidna, who in mythology it was the spawn of.
Hydra was one of the spawn of Echidna, a many-headed serpentine monstrosity in Ancient Greek mythology. It could breathe poison, and indeed its very blood was deadly. The Hydra was killed as one of Heracles's Twelve Labors.The