Pierus
2. An autochthon, king of Emathia (Macedoia), begot by Euippe or Antiope nine daughters, to whom he gave the names of the nine Muses. They afterwards entered into a contest with the Muses, and being conquered, they were metamorphosed into birds called Colymbas, Iyngx, Cenchris, Cissa, Chloris, Acalanthis, Nessa, Pipo, and Dracontis. (Ant. Lib. 9; Paus. 9.29.2; Ov. Met. 5.295, &c.)
From William Smith (ed.), Dictionary of Greek and Roman Biography and Mythology. Text provided under a CC BY-SA license by Perseus Digital Library, http://www.perseus.tufts.edu, with funding from the National Endowment for the Humanities and Tufts University. Data accessed from https://github.com/PerseusDL/canonical-pdlrefwk/ on 17 October 2026.