Ceto minor Oceanid also named Ceto, or with various mythological beings referred to as "ketos" (plural "ketea"); this is a general term for "sea monster" in Ancient Greek. Hesiod's "Theogony" lists the children of Phorcys and Ceto as Echidna, The Gorgons (Euryale, Stheno, and the infamous Medusa), The Graeae (Deino, Enyo, Pemphredo, and sometimes Perso), and Ladon, also called the Drakon Hesperios ("Hesperian Dragon", or dragon of the Hesperides). These children tend to be consistent across sources, though Ladon is sometimes cited as a child of Echidna by Typhon and therefore Phorcys and Ceto's grandson. The Scholiast on Apollonius Rhodius cites
Pierides (mythology) Pierides (mythology) In Greek mythology, the Pierides (Ancient Greek: Πιερίδες) or Emathides (Ἠμαθίδες) were the nine sisters who defied the Muses in a contest of song and, having been defeated, were turned into birds. The Muses themselves are sometimes called by this name. They were the daughters of Pierus, king of Emathia in Macedon, by Antiope of Pieria or Euippe of Paionia. The sisters were also called Emathides, named after their paternal uncle Emathus. In Ovid's "Metamorphoses", Urania, one of the Muses recounts their contest with the Pierides to Athena in the following excerpts:"So spoke the Muse. And now was