The Nuli were a mythical tribe of Indian men with backward-facing, eight-toed feet.
Etymology
The original Greek spelling of their name might be either Nuloi or Nouloi.
Quote
"Megasthenes [Greek historian C4th B.C.] states that on the [Indian] mountain named Nulus there are people with their feet turned backwards and with eight toes on each foot." - Pliny the Elder,Natural History 7. 23 (trans. Rackham) (Roman encyclopedia C1st A.D).