For 10 points—name this father of Naupilus and Hippothoon and lover of Alope and Caenaeus, the Greek god of earthquakes and the sea.
The horse of Adrastus was one son of this god, who was endowed with the gift of human speech because his parents were Demeter and this character.  Another son of this god fathered Lernus by Philyra and founded the city of Naupila, and one son of this god became the king of Eleusis after the death of Cercyon.  One lover of this god was buried alive by her father before being turned into a spring, and he raped a female warrior before changing her into a man.  For 10 points—name this father of Naupilus and Hippothoon and lover of Alope and Caenaeus, the Greek god of earthquakes and the sea.
The horse of Adrastus was one son of this god, who was endowed with the gift of human speech because his parents were Demeter and this character.  
Poseidon