NAULETTE  , a large cavern on the

left bank of the Lesse, which joins the Meuse above Dinant, Belgium . Here in 1866 Edouard Dupont discovered an imperfect human lower jaw, . now in the Brussels Natural History Museum . It is of a very ape-like type in its extreme projection and that of the teeth sockets (teeth themselves lost), with canines very strong and large molars increasing in size backward . It was found associated with the remains of mammoth, rhinoceros and reindeer . The Naulette man is now assigned to the Mousterian Epoch . See G. de Mortillet, Le Prehistorique (1900) ; E . Dupont, Etude sur les fouilles scientifiques executies pendant l'hiver (1865–1866), p . 21 . NAUMACHIA, the Greek word denoting a naval battle (vans, ship, and µ6.x17, battle), used by the Romans as a term for a mimic sea-fight . These entertainments took place in the amphitheatre, which was flooded with water, or in specially constructed basins (also called naumachiae) . The first on record, representing an engagement between a Tyrian and an Egyptian fleet, was given by Julius Caesar (46 B.C.) on a lake which he constructed in the Campus Martins . In 2 B.C .

Augustus, at the dedication of the temple of Mars Ultor, exhibited a naumachia between Athenians and Persians, in a basin probably in the horti Caesaris, where subsequently Titus gave a representation of a sea-fight between Corinth and Corcyra . In that given by Claudius (A.D . 52) on the lacus Fucinus, 19,000 men dressed as Rhodians and Sicilians manoeuvred and fought . The crews consisted of gladiators and condemned criminals; in later times, even of volunteers . See L . Friedlander in J . Marquardt, Romische Staatsverwaltung, iii . (1885) p . 558 .