Mythology & Beliefs: Pontus In Greek and Roman Mythology, Pontus was the sea god; son of Gaea.
Pontus in Greek and Roman Biography and Mythology
（*Po/ntos), a personification of the sea, is described in the
ancient cosmogony as a son of Gaea, and as the father of
Nereus, Thaumas, Phorcys, Ceto, and Eurybia, by his own
mother. (Hes. Th. 132, 233, &c.; Apollod. 1.2.6.) Hyginus
(Fab. praef. p. 3, ed. Staveren) calls him a son of Aether and
Gaea, and also assigns to him somewhat different descendants.
- A Dictionary of Greek and Roman biography and mythology,
William Smith, Ed.
Pontus in Wikipedia
In Greek mythology, Pontus (or Pontos (Πόντος), English
translation: "sea") was an ancient, pre-Olympian sea-god,
one of the protogenoi, the "first-born". Pontus was the son
of Gaia, the Earth: Hesiod  says that Gaia brought forth
Pontus out of herself, without coupling. For Hesiod, Pontus
seems little more than a personification of the sea, ho
pontos, "the Road", by which Hellenes signified the
Mediterranean Sea. With Gaia, he was the father of Nereus
(the Old Man of the Sea), of Thaumas (the awe-striking
"wonder" of the Sea, embodiment of the sea's dangerous
aspects), of Phorcys and his sister-consort Ceto, and of the
"Strong Goddess" Eurybia. With Thalassa (whose own name
simply means "sea" but is derived from a pre-Greek root), he
was the father of the Telchines. Compare the sea-Titan
Oceanus, the Ocean-Stream that girdled the earth, who was
more vividly realized than Pontus among the Hellenes.
In a Roman sculpture of the second century AD (illustration,
left) Pontus, rising from seaweed, grasps a rudder with his
right hand and leans on the prow of a ship. He wears a mural
crown, and accompanies Fortuna, whose draperies appear at
the left, as twin patron deities of the Black Sea port of
Tomis in Moesia. - Wikipedia