KHIONE was a Naiad nymph of the spring, well or fountain of Khios (Chios), the main town of the Aegean island of the same name. She was loved by the god Poseidon, and in a fall of snow (khios) bore him a son Khios, the first eponymous king of the island.
Another Khian Naiad was the mother of the Melos and Agelos, eponyms of the island's other main towns.
Perhaps the daughter of a local RIVER-GOD
KHIOS (by Poseidon) (Pausanias 7.4.8)
Pausanias, Description of Greece 7. 4. 8 (trans. Jones) (Greek travelogue C2nd A.D.) :
"Ion the tragic poet [C5th B.C.] says in his history that Poseidon came to the island [of Khios (Chios)] when it was uninhabited; that there he had intercourse with a Nymphe, and that when she was in her pains there was a fall of snow (khion), and that accordingly Poseidon called his son Khios. Ion also says that Poseidon had intercourse with another Nymphe, by whom he had Agelos and Melas."
Pliny the Elder, Natural History 5. 136 (trans. Rackham) (Roman encyclopedia C1st A.D.) :
"This island [Khios, Chios] Ephorus [Greek historian C4th B.C.] designates by its ancient name of Aethalia, while Metrodorus and Cleobulus [Greek philosopher C6th B.C.] call it Khia (Chia) after the Nympha Khione, though some say that name is derived from the Greek word for snow."
- Pausanias, Description of Greece - Greek Travelogue C2nd A.D.
- Pliny the Elder, Natural History - Latin Encyclopedia C1st A.D.