C ASTRA EQUITUM SINGULARIUM—CASTRA PEREGRIN A 105
199. 202 ; DuP 97). In the early nineteenth century it was often wrongly
called the Graecostasis or the temple of Jupiter Stator.
Castra Equitum Singularium : the barracks of the equites singulares, a
select corps of cavalry organised about the end of the first century as a
bodyguard for the emperor. Some remains of these barracks were found
in 1885 in the Via Tasso, just north-west of the Scala Santa, consisting
principally of the wall of a large rectangular court, in which were niches
and in front of the niches inscribed pedestals (BC 1885, 137 ; Ann. d.
Inst. 1885, 235 ; PT 131). These inscriptions and others found near by
(CIL vi. 31138-31187) mention castra prior a and castra nova or nova
Severiana, and one MS. of the Notitia reads castra eq. sing. 11. There
were, therefore, two barracks, the later apparently erected by Severus,
but they were probably adjacent structures, or even parts of the same
building (HJ 246 ; DE ii. 2148). Other fragments of walls that probably
belong to the castra have been found in front of the Lateran (BC 1913,
72-74).
Castra Font(anorum) : an uncertain reading of an inscription (CIL vi. 70)
known only from Gudius, and of unknown provenience. Cf., however, ib.
30855·
Castra Lecticariorum : mentioned only in Reg. in Region XIV and in the
Breviarium, otherwise unknown.
Castra Misenatium : barracks occupied by sailors from the imperial
fleet stationed at Misenum, who were detailed for service in the city,
especially in the Colosseum and naumachiae (RE iii. 2638 ; Jord. ii. 116 ;
Hist. Aug. Com. 15). These barracks were between the thermae Traianae
and the via Labicana, where inscriptions relating to them have been
found (CIL vi. 1091 ; IG xiv. 956 b. 15). The name occurs on a
fragment (5) of the Marble Plan, and in the Regionary Catalogue in
Region II.
It is uncertain whether we should assign to them a long row of small
chambers in brickwork of the same size and plan which runs along the
north side of the via Labicana between the thermae of Titus and the
church of S. Clemente (LF 30; NS 1888, 727; HJ 302). Numerous
concrete foundation walls were cut in making a drain from S. Clemente
to the Colosseum in 1912-1914, when the mithraeum and the house under
the church were successfully freed from water (see Nolan, Basilica of
S. Clemente 250, and the series of photographs of the sections of the drain
then prepared—for private circulation—a copy of which is in the library
of the British School at Rome).
Castra Peregrina : on the Caelian hill, the barracks of the peregrini,
soldiers detached for special service in Rome from the provincial armies.
They consisted principally of the frumentarii, who were originally
employed on supply service, but also used as military couriers (their
institution dates perhaps from Augustus), and in the second and third
199. 202 ; DuP 97). In the early nineteenth century it was often wrongly
called the Graecostasis or the temple of Jupiter Stator.
Castra Equitum Singularium : the barracks of the equites singulares, a
select corps of cavalry organised about the end of the first century as a
bodyguard for the emperor. Some remains of these barracks were found
in 1885 in the Via Tasso, just north-west of the Scala Santa, consisting
principally of the wall of a large rectangular court, in which were niches
and in front of the niches inscribed pedestals (BC 1885, 137 ; Ann. d.
Inst. 1885, 235 ; PT 131). These inscriptions and others found near by
(CIL vi. 31138-31187) mention castra prior a and castra nova or nova
Severiana, and one MS. of the Notitia reads castra eq. sing. 11. There
were, therefore, two barracks, the later apparently erected by Severus,
but they were probably adjacent structures, or even parts of the same
building (HJ 246 ; DE ii. 2148). Other fragments of walls that probably
belong to the castra have been found in front of the Lateran (BC 1913,
72-74).
Castra Font(anorum) : an uncertain reading of an inscription (CIL vi. 70)
known only from Gudius, and of unknown provenience. Cf., however, ib.
30855·
Castra Lecticariorum : mentioned only in Reg. in Region XIV and in the
Breviarium, otherwise unknown.
Castra Misenatium : barracks occupied by sailors from the imperial
fleet stationed at Misenum, who were detailed for service in the city,
especially in the Colosseum and naumachiae (RE iii. 2638 ; Jord. ii. 116 ;
Hist. Aug. Com. 15). These barracks were between the thermae Traianae
and the via Labicana, where inscriptions relating to them have been
found (CIL vi. 1091 ; IG xiv. 956 b. 15). The name occurs on a
fragment (5) of the Marble Plan, and in the Regionary Catalogue in
Region II.
It is uncertain whether we should assign to them a long row of small
chambers in brickwork of the same size and plan which runs along the
north side of the via Labicana between the thermae of Titus and the
church of S. Clemente (LF 30; NS 1888, 727; HJ 302). Numerous
concrete foundation walls were cut in making a drain from S. Clemente
to the Colosseum in 1912-1914, when the mithraeum and the house under
the church were successfully freed from water (see Nolan, Basilica of
S. Clemente 250, and the series of photographs of the sections of the drain
then prepared—for private circulation—a copy of which is in the library
of the British School at Rome).
Castra Peregrina : on the Caelian hill, the barracks of the peregrini,
soldiers detached for special service in Rome from the provincial armies.
They consisted principally of the frumentarii, who were originally
employed on supply service, but also used as military couriers (their
institution dates perhaps from Augustus), and in the second and third