This god's other offspring include the slayer of Acis, the cyclops Polyphemus, and Triton.
This god granted the power of metamorphosis to Mestra so that she could escape the men her father sold her to and was called Genethlios, or Creator, by the Spartans. His son Sinis was a bandit killed by Theseus and his son Arion is a talking horse with two human feet, and this god caused Pasiphae to lust after a bull. This god of earthquakes also fathered Pegasus by seducing Medusa and had a dolphin bring him his wife Amphitrite. This god's other offspring include the slayer of Acis, the cyclops Polyphemus, and Triton. For 10 points, name this trident-wielding Greek god of the sea.
This god granted the power of metamorphosis to Mestra so that she could escape the men her father sold her to and was called Genethlios, or Creator, by the Spartans.
{Poseidon} [accept {Neptune} until “{Genethlios}”]