of a late Republican date. Regio III Baths of the Christian Basilica These baths (III, I, 2-3) were constructed during the reign of Trajan and restored sometime during the early third century C.E. It is unclear if they are related to their namesake, the neighboring Christian Basilica (III, I, 4). Terme Marittime These baths (III, VIII, 2) were given the wrong name by early excavators at Ostia. Originally believed to be the Thermae Marittime in CIL XIV, 137 which has since been connected to the Porta Marina Baths. These baths were started around 130 C.E., destroying a part of the Republican city walls in their construction. They underwent two more sets of renovations around 210 C.E. and in the mid-4th century C.E. The bathhouse contains several mosaics with oceanic themes. One of them shows the head of Oceanus surrounding by four smaller tritons, done to emphasis the importance of the central figure. Beyond the typical bathhouse rooms, it also contains a set of terraces that led to the sea. Baths of the Seven Sages This bath complex (III, X, 2) creates a city block with houses to the north and the south (House of the Charioteers and House of Serapis) from the late Hadrianic/early Antonine period. It is possible this bathhouse was only intended for the residents of the two adjoining insulae. The bath is named after a satirical painting of seven Greek philosophers found in a room that was formerly a tavern and later used as the apodyterium, the philosophers are identified by their names and city of origin written in Greek and a humorous and ironic Latin inscription referring to latrine activities. The central hall contains a mosaic with 5 concentric rings depicting hunting scenes. The room adjacent to the natatio is a fresco of Venus Anadyomene. Baths of Trinacria These baths (III, XVI, 7) which were built at the same time as the Serapeum, were constructed during the reign of Hadrian. They were named after a mosaic found in the corridor south of the frigidarium which shows a female head with a triskeles, or three legs, behind her. The suspensurae, or raised floor, was restored during the reign of Commodus. In one of the heated rooms is a mosaic that potential advertised where one could find prostitutes in the bathhouse. Although others suggest that it was a nickname for an unofficial youth organization. Baths in Horrea III,