(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]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890