Oceanus&Oceanus
The World-Encircling River
Oceanus
The Great River
River-urn, bull horn, sea-serpent
Eldest Titan — the great river circling the world and father of all waters.
Neutral, peaceable and withdrawn; he sat out the Titanomachy entirely.
First-fruits and river libations; no blood.
The boundary river dividing the known world from the strange.
Oceanus
Father of Waters
Urn, oar, sea-monster, dolphin
Retained in Roman poetry and mosaics as the world-ocean, without a temple.
A decorative and geographic power, not a cultic personality.
None of note.
The sea as the edge of the empire's map.
Syncretism Analysis
Oceanus barely changed, because there was never a personality to adapt — Rome inherited him as geography. He is the clearest case of pure literary, rather than religious, transmission.