(Κυάνη), a Sicilian nymph and playmate of Proserpina, who was changed through grief at the loss of Proserpina into a well. The Syracusans celebrated an annual festival on that spot, which Heracles was said to have instituted. and at which a bull was sunk into the well as a sacrifice. (Diod. 5.4; Ov. Met. 5.412, &c.) A daughter of Liparus was likewise called Cyane. (Diod. 5.7.)
[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