<p>Compital shrine of an unnamed *Esquiline neighborhood near the *Clivus Suburanus, discovered in 1888 <i>in situ</i> near S. Martino ai Monti (Lanciani, <i>FUR</i> pl. 23, marked “ara Mercuri”). An isolated structure surrounded by street pavement, the <i>compitum</i> was refurbished in 10 B.C. with an inscribed marble statue base for Mercury behind a marble-revetted podium (<i>c</i>. 4 x 5 m), perhaps for an aedicular shrine (cf. *Compitum Acili); an older, altar-like structure of travertine behind the statue base was carefully preserved in the course of these building measures (Gatti 225-26; Lanciani, <i>FUR</i> pl. 23; cf. Martin). According to its inscription, Augustus dedicated the statue in 10 B.C. from the collected monies submitted to him in his absence by the Roman people on New Year’s day (<i>CIL</i> VI 30974=<i>ILS</i> 92; cf., e.g., <i>CIL</i> VI 457=<i>ILS</i> 93, of 9 B.C.; Gatti 229-34); this closely follows Suetonius’ report of Augustus’ practice in the case of neighborhoods ‘such as Apollo Sandalarius, Iuppiter Tragoedus, and others’ (<i>Aug.</i> 57.1: <i>vicatim dedicabat</i>). Due to its archaeological context, the reported modalities of its realization, and its secure date several years before the introduction of the *Regiones Quattuordecim in 7 B.C., the monument is of singular importance for the incipient Augustan transformation of Rome’s <i>vicus</i>-neighborhoods and their compital cults (cf. Martin, Fraschetti). Unfortunately, the name of this <i>vicus</i> is not mentioned in the inscription and remains unknown; a connection with the <i>vicus Sobrius</i> (based on Festus 382; Gatti 234-35) is “pure hypothesis” (Palombi; cf. Richardson).</p>