 It is believed that the corners of the pediment are filled by Athenian water deities, such as the Kephisos river, the Ilissos river, and nymph Kallirhoe.This belief merges from the fluid character of the sculptures' body position which represents the effort of the artist to give the impression of a flowing river.Next to the left river god, there are the sculptures of the mythical king of Athens (Cecrops or Kekrops) with his daughters (Aglaurus, Pandrosos, Herse).