The Teumessian Fox is a Greek creature.
The Teumessian Fox is a giant fox that was sent by the gods to punish the countryside of Thebes. Amphitryon was sent to capture the fox, which was impossible due to the fact that the fox was destined to never be caught. Amphitryon set Laelaps, a dog which was destined to always catch its prey, after the fox.
Zeus then turned the two creatures into stars to continue their chase for eternity.