NOUMIKIOS (or Numicius) was a River-God of Latium, in central Italia.
The Nomikios was a small Latin river which flowed into the sea between the towns of Lavinium and Ardea. Other personified Latin rivers included the Tiberos of Rome.
Ovid, Metamorphoses 14. 599 ff (trans. Melville) (Roman epic C1st B.C. to C1st A.D.) :
"Carried by her doves across the sky, [Aphrodite] reached the Laurentian coast, where though his thatch of reeds Numicius’ river winds his way down to the neighbouring shore. She bade the River wash from [her mortal son] Aeneas all that death could waste and waft it in his silent stream to sea. Obeying Venus’ [Aphrodite’s] bidding the horned god purged in his waters every mortal part and washed it all away--the best remained. So purified, his mother anointed him with heavenly perfume and . . . made her son a god."
- Ovid, Metamorphoses - Latin Epic C1st B.C. - C1st A.D.