Eight ithyphallic satyrs, alternately playing the double aulòs and the syrinx while crouching, seem to take part in a procession and are alternated with the eight sirens. Like the sirens, their hybrid appearance symbolizes the link between the world of the living and the dead. The erect phallus specifically alludes to the concept of rebirth. They belong to the celestial realm, as they are depicted in the constellation that replaces Sagittarius.