Halosydne

(Ἁλοσύδνη), that is, "the seafed," or the sea born goddess, occurs as a surname of Amiphitrite and Thetys. (Hom. Od. 4.404, Il. 20.207.) [L.S]

(Αλοσύδνη). “Sea-born.” An epithet applied to Thetis and to Aphrodité.