Calliste (mythology)
'the most beautiful') is the daughter of the sea-god Triton and the Libya of Egypt, who was given to the Argonauts as a clod of earth that transformed into the island Calliste.As the Argonauts sailed off of Colchis after having taken the golden fleece, Triton appeared to them in the form of a young, wealthy man and introduced himself as Eurypylus, the son of Poseidon.But the woman, introducing herself as Calliste, daughter of Triton and Libya, told him not to worry, and asked him to give her a home with the Nereids near the island of Anaphe.Apollo had told him that once he came into the possession of a clod of earth, should he throw it into the sea, the gods would be sure to make an island out of it.Euphemus, hearing that, tossed the clod in the water, and an island, named Calliste (now known as Santorini), sprang from it.