Juturna

In the myth and religion of ancient Rome, Juturna, or Diuturna,[1] was a goddess of fountains, wells and springs, and the mother of Fontus by Janus.

[2] Juturna was an ancient Latin deity of fountains,[3] who in some myths was turned by Jupiter into a water nymph – a Naiad – and given by him a sacred well in Lavinium, Latium,[4] as well as another one near the temple to Vesta in the Forum Romanum.

[2] The pool next to the second well in the Roman Forum (Rome) was called Lacus Juturnae.

It was here in Roman legend that the deities Castor and Pollux watered their horses after bringing news of the Roman victory at the Battle of Lake Regillus in 496 BC (Valerius Maximus, I.8.1; Plutarch, Life of Aemilius Paulus, 25.2, Life of Coriolanus, 3.4).

[2] Holloway has argued that the goddess shown carrying a winged helmet on early Roman coinage is Juturna, but her iconography is largely unknown.

Temple of Juturna in Largo di Torre Argentina , Rome.
Denarius issued in 96 BC with Castor and Pollux watering their horses at the fountain of Juturna, and the laureate head of Apollo on the obverse