in Onkeion: Temple of Demeter Erinys (vengeful) and Demeter Lusia (bathing). In the myth Demeter was united with Poseidon Hippios (horse) and bore the horse Arion and the unnamed. The name Despoina was given in West Arcadia. Phigalia : Cult of the mare-headed Demeter (black), and Despoina . Demeter was depicted