Juturna
The nymph of a well in Latium, famous for its excellent healing qualities. Its water was used in nearly all sacrifices (Serv. ad Aen. xii. 139; Varr. de L. L. v. 71), and a chapel was dedicated to its nymph at Rome in the Campus Martius by Lutatius Catulus; sacrifices were offered to her on the 11th of January both by the state and private persons. (Fasti By Ovid; Serv. l.c.) A pond in the forum, between the temples of Castor and Vesta, was called Lacus Juturnae, whence we must infer that the name of the nymph Juturna is not connected with jugis, but probably with juvare. She is said to have been beloved by Jupiter, who rewarded her with immortality and the rule over the waters. (The Aeneid by Virgil xii.; Fasti By Ovid) Arnobius (iii. 29) calls her the wife of Janus and mother of Fontus, but in the Aeneid she appears as the affectionate sister of Turnus. (Hartung, Die Relig. der Röm. vol. ii. p. 101, &c.)
From Smith's Dictionary of Greek and Roman Biography and MythologyFrom The Aeneid by Virgil Book XII
Now Turnus, posted on a hill, from far
Beheld the progress of the moving war:
With him the Latins view'd the cover'd plains,
And the chill blood ran backward in their veins.
Juturna saw th' advancing troops appear,
And heard the hostile sound, and fled for fear.
Aeneas leads; and draws a sweeping train,
Clos'd in their ranks, and pouring on the plain.
As when a whirlwind, rushing to the shore
From the mid ocean, drives the waves before;
The painful hind with heavy heart foresees
The flatted fields, and slaughter of the trees;
With like impetuous rage the prince appears
Before his doubled front, nor less destruction bears.
