Thaumas

In Greek mythology, Thaumas (/ˈθɔːməs/; Θαῦμας; gen.: Θαύμαντος) (English translation: "wonder") was a sea god, son of Pontus and Gaia. He married an Oceanid, Electra (or Ozomene). The children of Thaumas and Electra were the Harpies and Iris, the goddess of rainbows and a messenger of the gods; according to some, also Arke.

Poseidon overthrew him and became the new sea god.

Thaumas was also the name of a centaur.