HMS Hydra (A144) the first commission of HMS "Hydra". She was decommissioned and sold to the Indonesian Navy in 1986 and renamed KRI "Dewa Kembar" (Pennant Number 932); she was still in service in 2006. There have been eight ships of the name in the Royal Navy, named for the Hydra of Greek Mythology, a serpent with many heads (though nine is generally accepted as standard), the centre one of which was immortal. The monster was overcome and slain by Hercules. The ship's badge of HMS "Hydra" depicts the monster with seven heads. The ship's motto was "Ut Herculis Perseverantia" ("Like Hercules Persevere").
Cycnus (son of Ares) the hand of Heracles. Cycnus (son of Ares) In Greek mythology, Cycnus (Ancient Greek: Κύκνος means "swan") or Cygnus, was a bloodthirsty and cruel man who dwelt either in Pagasae, Thessaly or by the river Echedorus in Macedonia. Cycnus was the son of Ares by Pelopia or Pyrene. He married Themistonoe, daughter of King Ceyx of Trachis and possibly, Alcyone, daughter of Aeolus. Cycnus killed all of his guests until he was slain by Heracles. According to Pausanias, one of the men murdered by him was Lycus of Thrace. Pseudo-Apollodorus wrote of Cycnus the Thessalian, the son of Pelopia, and