Amphitrite

In Greek mythology, a goddess of the sea, married to Poseidon. She is the mother of Triton and other minor deities.

Amphitrite, in ancient Greek mythology, was an ancient sea-goddess, who became the consort of Poseidon;

Amphitrite, "the third one who encircles (the sea)", was so entirely confined in her authority to the sea and the creatures in it, that she was all but never associated with her husband either for purposes of worship or in works of art, except when he was to be distinctly regarded as the god who controlled the sea: an exception may be the cult image of Amphitrite that Pausanias saw in the temple of Poseidon at the Isthmus of Corinth (ii.1.7). For later poets, Amphitrite was simply a metaphor for the sea: Euripides, in Cyclops (702) and Ovid, Metamorphoses, (i.14).

In the arts, Amphitrite was distinguishable from the other Nereids only by her queenly attributes. Poseidon had one son by Amphitrite, Triton and a daughter, Rhode (if this Rhode was not actually fathered by Poseidon on Halia or was not the dauther of Asopus as others claim.) Apollodorus (3.15.4) also mentions a daughter of Poseidon and Amphitrite named Benthesikyme.

In works of art Amphitrite is represented either enthroned beside him, or driving with him in a chariot drawn by sea-horses (hippocamps) or other fabulous creatures of the deep, and attended by Tritons and Nereids.

There is also an asteroid called Amphitrite, 29 Amphitrite

Amphitrite is also a genus of the polychaete family Terebellidae.