Triton, in Greek mythology, a merman, demigod of the sea; he was the son of the sea god, Poseidon, and his wife, Amphitrite. According to the Greek poet Hesiod, Triton dwelt with his parents in a golden palace in the depths of the sea. Sometimes he was not particularized but was one of many Tritons. He was represented as human down to his waist, with the tail of a fish. Triton’s special attribute was a twisted seashell, on which he blew to calm or raise the waves.