NIGHTBRINGER | The Arthurian Encyclopedia

Papagustes

Palagustes, Palustes, Papaguites, Papalustes

A fearsome Scottish serpent, the ribs of which conferred upon their holder immunity for heat.

One of these ribs formed half of the hilt of Galahad’s Sword with the Strange Hangings.


Source
Vulgate Estoire del Saint Graal | 1220-1235