A qutrub () in Arabian folklore is a type of jinn or demon, likened to an "Arabian 'werewolf'",Mythology in the Middle Ages: Heroic Tales of Monsters, Magic, and Might By Christopher R. Fee similar to a ghoul because it was said to haunt graveyards and eat corpses.
See also Cynocephaly Sila
References
Vana'diel Bestiary for Final Fantasy XI: Qutrub (Allakhazam.com)