Pegasides were nymphs from Greek mythology connected to wells and brooks. They are associated with water holes, in particular those the mythical horse Pegasus made by striking the ground with his hooves. Pegasides are connected with the term Pegasis, which means all that descended from Pegasus or originated by him. As a further relation, Pegasis also is the name given to the nymph Oenone by Roman poet Ovid, which was daughter of river-god Cebrenus. Pegasides are related to the divinity Pegasus. As laid on some mythic versions this alated stallion was son of Poseidon, the sea-god of the Greeks. Pegasus was as well sacred to the Roman god Neptune and the rivers, and dedicated as a general symbol of the waters. According to the mythological narration, the hero Bellerophon needed the untamed Pegasus to help him to defeat the monster Chimera. Hence while the steed satisfied his thirst at the fountain Pirene in Corinth, Greece, Bellerophon managed to catch him.