In the raised peristyle garden was a nymphaeum. This took the form of a large semi circular niche. The niche was heavily decorate with mosaic, which does not survive today. It included ornamentation of plants and reeds on a blue background. The vaulted ceiling of the niche was decorated with mosaic pattern of a shell. Below the ceiling ran a row of shells acting like a cornice, with the remainder of the niche below this being painted red. In the centre of the niche stood a marble statue of Silenus resting against a tree truck holding a water bottle from which water poured. The niche sat against the west wall of of peristyle, above a series of marble steps from which water travelled down into the circular basin below. On either side of these steps two herms of Bacchus.