Statistics for occurrence #1 of “Pelion” in book 8, chapter 11 of Polybius, Histories:
...rt, especially as I have such a mass of matter
to deal with, I believe that the so-called 'friends' and
'companions' of Philip were more bestial in nature and
character than the Centaurs who lived on Pelion , or the
Laestrygones who inhabited the Leontine plain, or in fact any
other monsters whatever."
...