[ 6 4i ] 
L. 3. — CASTELLAR.] For explaining this title, 
it is to be obferved, that the refervoirs, which re- 
ceived the waters brought by aqueduds into the city 
of Rome, were called cajiella. 
Agrippa in cedilitate Jua adjedid virgine aqua , cce- 
teris corrivatis atque emendatis> lacus Jeptingentos 
fecit: prceterea falientes centum quinque-, castella 
centum triginta , complura etiam cultu magnifica. 
Plin. Hift. Nat. 1 . xxxvi. c. 15. 
There are ftill extant very conliderable remains of 
fome of thefe cajiella , viz. that of Aqua Claudia at 
Porta Maggiore ; and another of Aqua Marcia, com- 
monly called I Trofei di Mario, near Sto Eufebio in 
Rome. 
From hence it is obvious to colled:, that the office 
of the cafiellarius was to fuperintend the public refer- 
voirs above-mentioned, to diftribute the waters in due 
proportion into the feveral quarters of the city, &c. 
Fabretti has preferved an infcription, relating to one 
of thefe officers, viz. the cafiellarius of the Aqua 
Marcia. Vid. Bianchi?ii apud Vafi delle Magrtif. di 
Roma , lib. i. />. 31. 
lb. L. 3.— AQVAE. ANNIONIS. VETER IS.] 
This water was brought to Rome A. U. 481. It 
was taken up from the Anio, or Teverone, above 
Tibur, (Tivoli) about twenty miles from Rome, and 
entered the city by the fame aquedud, which con- 
veyed the Aqua Appia, near the Porta Capena (Sto 
Sebaffiano). From thence it palled along between 
M. Aventinus and Cadius, to the end of the Vicus 
Publicius, near the modern Scola Greca, where it 
had its refervoir contiguous to that of the Aqua Appia 
above- 
