Corycian

The Thriae or Thriai were nymphs, three virginal sisters, one of a number of such triads ("maiden trinities" Jane Ellen Harrison called them) in Greek mythology. They received names Melaina ("The Black"), Kleodora ("Famed for her Gift"), and Daphnis ("Laurel"); however, in the page in the Corycian nymphs, the third sister is listed as Corycia. They were the three Naiads (nymphs) of the sacred springs of the Corycian Cave of Mount Parnassus in Phocis.