ARCUS AD ISIS
the name inscribed on the attic of the triple arch that
is represented as standing on the east side of the Colosseum on the Haterii
relief. This arch is decorated with Egyptian symbols, and a figure of
Isis stands in the central archway. It would be natural to locate this
arch close to the Colosseum, but the inscription indicates clearly that
it was named from its proximity to the temple of Isis (q.v.). It probably
spanned the via Labicana near the temple (Helbig, Fuhrer 3, No. 1193;
Ann. d. Inst. 1849, 363-410
; Mon. d. Inst. v. 7
; Spano in Mem. Accad.
di Napoli, xxiv. 1906, 227 sqq).