Geryon. Geryon was a monster, said to be the offspring of Chrysaor and Callirhoe, and to have three bodies and three heads. His residence was in the island of Gades, where his numerous flocks were kept by the herdsman, Eurythion, and guarded by a two-headed dog, called Orthos. The destruction of this monster formed one of the twelve labors of Hercules.

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