Queyras is a "Mirkwood" rat.  He is a chunky boy, and is actually a Berkshire.  It is easier to see the markings when a Siamese Berkshire is a kitten.  As the rat gets older the two shades of "white" sometimes become almost indistinguishable.  However, if you look at Queyras legs (top of picture) you can see his white gloves.  If anyone can work out why he got his name, I'll have to think of some sort of award!  (let me know!).

Larch is his Dad and Luna (Rattenfanger) is his mum.