Amphitrite

"This is my, er, wife, Amphitrite."

- Poseidon

Amphitrite (Αμφιτρίτη in Ancient Greek) is the immortal wife of Poseidon and Queen of the Sea. She is sometimes listed among the Oceanids, but more often she said to be one of the fifty Nereids, daughters of the Sea god, Nereus and the Oceanid, Doris. By Poseidon, she is the mother of Triton. Her Roman counterpart is Salacia.

History
After Poseidon replaced her grandfather as ruler of the Sea, Amphitrite became his wife. When she resisted she tried to run away to her brother for help (usually Atlas) Poseidon sent a dolphin to retrieve her. They had a son, Triton, who became both his father's heir and herald.

The Last Olympian
Amphitrite is seen talking strategy with her husband Poseidon in the throne room of their ocean floor palace, along with their son, Triton. Percy Jackson, her stepson, joins them, and Amphitrite treats him coldly, as he is the proof of her husband's unfaithfulness. Percy expects nothing else, and feels sorry for her as she doesn't have a faithful husband. She is worried how Oceanus is attacking and how Poseidon is losing power to the former ruler of the Sea. She is shown as a warrior, as she leaves the meeting to return to the battle. Poseidon then apologizes for her behavior to Percy.

Personality
"Excuse me, my lord. I am needed in the battle."

- Amphitrite Amphitrite is a formal goddess, calling her husband "my lord". She is proud and haughty to Percy, but is likely otherwise when she is speaking to others. She seems hurt by her husbands' liaisons, and probably wasn't happy when Poseidon broke his promise on the River Styx that he wouldn't have anymore demigod children, resulting in Percy whom it seems Amphitrite will never forgive. In myth, she does not, unlike Hera, punish or harm her husband's mistresses or his children by them, but she does show strong disapproval and disdain for Percy.

Appearance
"To his right stood a beautiful woman in green armor with flowing black hair and strange little horns like crab claws."

- Percy Jackson

Amphitrite is a beautiful goddess, with flowing black hair and small horns like crab claws. She fights with a trident and a net.

Salacia
Salacia is Amphitrite's Roman counterpart. As Salacia, she becomes more disciplined, warlike, and militaristic. In ancient Roman mythology, Salacia was the female divinity of the sea, worshipped as the goddess of salt water who presided over the depths of the ocean. She was the wife and queen of Neptune, god of the sea and water. As Neptune's wife, Salacia bore him three children. Salacia was the personification of the calm and sunlit aspect of the sea.

The sea god Neptune wanted to marry Salacia, but she was in great awe of her distinguished suitor, and to preserve her virginity, with grace and celerity she managed to glide out of his sight, and hid from him in the Atlantic Ocean. The grieving Neptune sent a dolphin to look for her and persuade the fair nymph to come back and share his throne. Salacia agreed to marry Neptune and the King of the Deep was so overjoyed at these good tidings that the dolphin was awarded a place in the heavens, where he now forms a well known constellation Delphinus.

Salacia is represented as a beautiful nymph, crowned with seaweed, either enthroned beside Neptune or driving with him in a pearl shell chariot drawn by dolphins, sea-horses (hippocamps) or other fabulous creatures of the deep, and attended by Tritons and Nereids. She is dressed in queenly robes and has nets in her hair.

Trivia

 * Her Roman Counterpart is Salacia, goddess of sea water.
 * She is one of the fifty Nereids.
 * Together with her sisters Kymatolege and Kymodoke she possessed the power to still the winds and calm the sea.
 * Amphitrite is mostly known as the female personification of the sea.
 * She is the mother of seals, fish, and dolphins.
 * At first she fled away from Poseidon and his wooing, hiding herself near Atlas in the ocean stream at the far ends of the world. It was Delphin who convinced her to return and wed the king of the sea although in most stories she returned to and married Poseidon against her will.
 * Sometimes, as Salacia, she is also as the goddess of the springs, ruling over the springs of highly mineralized waters.
 * In northern Europe, the Norse god Aegir and his consort, Rán are equivalent to Neptune and Salacia (roman counterpart of Amphitrite.
 * The goddess Sulis, an aspect of Salacia (roman counterpart of Amphitrite) is worshiped at the sacred hot springs at Bath.
 * Derived from Latin, sal meaning "salt", the name Salacia denotes the wide open sea, and is sometimes literally translated to mean sensational.