Orphic Principle 3: Serpent

The third principle after the two was engendered by these--Ge (Earth) and Hydros (Water), that is--and was a Serpent (Drakon) with extra heads growing upon it of a bull and a lion, and a god’s countenance in the middle; it had wings upon its shoulders, and its name was Khronos (Unaging Time) and also Herakles. United with it was Ananke (Inevitability, Compulsion) , being of the same nature, or Adrastea, incorporeal, her arms extended throughout the universe and touching its extremities. I think this stands for the third principle, occuping the place of essence, only he [Orpheus] made it bisexual [as Phanes] to symbolize the universal generative cause. http://www.theoi.com/Protogenos/Gaia.html