ADRIA (anc. Atria; the form Adria or Hadria is less correct: Atria was a town in Picenum, the modern Atri), town and episcopal see, province of Rovigo, Italy, 15m. E. by rail from the town of Rovigo. It is situated between the mouths of the Adige and the Po, about 131m. from the sea and but 13f t. above it. Pop. (1931), 16,008 (town), 31,025 (commune). It gave its name to the Adriatic and was an important Etruscan harbour. The town was famous in Aristotle's day for a special breed of fowls. Even then river silt rendered access difficult, and the historian Philistus excavated a canal to the sea. This was still open in the imperial period, and the town possessed its own guild of sailors; but its importance gradually decreased. The remains of the ancient town lie ro-2oft. below the modern level.