Keuthonymos (or Ceuthonymus) (Κευθωνυμος) is the an ancient Greek spirit in mythology who is the father of Menoites (or Menoetes, Menoetius) who guarded the oxen of Hades. Keuthonymos is a mysterious Daimon or spirit of the Underworld, who lives in the realm of Hades. Keuthonymos is possibly the same as Iapetos, a Titan, and father of a ...