Fountain located on the wall of the tablinum. It shows a mosaic with Gorgon masks within a rhombus motif with a blue background, Amorini in flight with trophies, an acanthus head with a winged figure in the tympanum, and Venus in a shell in the bowl of the apse, above which is Poseidon with a trident in a sea of fish and ducks. The detail shows a winged figure surrounded on either side by trellises of acanthus leaves and shells