Two nymphs of the island of Samos who were loved by Poseidon. The sea god had come to the island at a time when it was uninhabited and lay with the nymphs. When the first one was in labor, it snowed on the island, and Poseidon named his son Chios (chion, "snow"). The other nymph bore him Agelus and Melas.
- Pausanias. Description of Greece vii, 4.8.