Pegasides Pegasides Pegasides () were nymphs of Greek mythology connected with wells and springs, specifically those that the mythical horse Pegasus created by striking the ground with his hooves. According to Greek mythological tradition the winged horse Pegasus was the son of Poseidon, sea and river god of the Greeks, equivalent to the Roman Neptune. The hero Bellerophon needed the untamed Pegasus to help him defeat the monster Chimera. Hence, while Pegasus was drinking at the spring Pirene in Corinth, Bellerophon caught him. Pegasus, startled, struck a rock with his hoof, creating the spring Hippocrene on Mount Helicon. The name Pegasides
Pluto (mythology) the underworld. "Plūtō" (; genitive "Plūtōnis") is the Latinized form of the Greek "Plouton". Pluto's Roman equivalent is Dis Pater, whose name is most often taken to mean "Rich Father" and is perhaps a direct translation of "Plouton." Pluto was also identified with the obscure Roman Orcus, like Hades the name of both a god of the underworld and the underworld as a place. The borrowed Greek name "Pluto" is sometimes used for the ruler of the dead in Latin literature, leading some mythology handbooks to assert misleadingly that Pluto was the Roman counterpart of Hades. "Pluto" ("Pluton" in French