Lernaean Hydra that Hera placed the Hydra and crab as constellations in the night sky after Heracles slew him. When the sun is in the sign of Cancer (Latin for "The Crab"), the constellation Hydra has its head nearby. In fact, both constellations derived from the earlier Babylonian signs: Bashmu ("The Venomous Snake") and Alluttu ("The Crayfish"). Primary sources Secondary sources Lernaean Hydra The Lernaean Hydra or Hydra of Lerna (, "Lernaîa Hýdra"), more often known simply as the Hydra, is a serpentine water monster in Greek and Roman mythology. Its lair was the lake of Lerna in the Argolid, which was
Greek ironclad Hydra the engagement. By 1914, "Hydra" had been withdrawn from active duty to serve as a gunnery training ship. At the outbreak of World War I in at the end of July 1914, Greece's pro-German monarch, Constantine I, decided to remain neutral. The Entente powers landed troops in Salonika in 1915, which was a source of tension between France and Greece. In October 1916, "Hydra" and a pair of torpedo boats defected to the Venizelist faction in the National Schism. Ultimately, the French seized the Greek Navy on 19 October; the heavy units of the Greek fleet were disarmed and placed