[Footnote 71: The Decennovium is strangely confounded by
Cluverius (tom. ii. p. 1007) with the River Ufens. It was
in truth a canal of nineteen miles, from Forum Appii to
Terracina, on which Horace embarked in the night. The
Decennovium, which is mentioned by Lucan, Dion Cassius, and
Cassiodorus, has been sufficiently ruined, restored, and
obliterated, (D'Anville, Anayse de l'Italie, p. 185, &c.)]