hydra Picture

In Greek legend, the offspring of Typhon and Echidna, a gigantic monster with nine heads (the number varies), the centre one immortal. The monster's haunt was the marshes of Lerna near Argos. The destruction of Hydra was one of the 12 Labours of Heracles, which he accomplished with the assistance of Iolaus. As one head was cut off, two grew in its place;

apophysis.

other mythological sea creatures in the series:
cthulhlu
kraken
siren
Oishii~
Don't watch!
hydra
Cocatrix
Neo-Odyssey-Chimera