So, I know what a lot of people might say: mummies aren't really a race, they are just dead people that put a lot of bandage on them. But hear me out:
Mummies would be one of the few races that would inhabit Desertic biomes. They're quite an old race and they are very civilized (not to the point of High Beavers but more than Elves) and quite specialized too (to the same extent than Elves more or less). But they would be a very extreme example of K-selected race: live very long, and have very few offsprings.
But why would a specie would just roll themselves in toilet paper? Well, Mummies are a race of beings that fed on magic. Temporal magic, to be more precise. They "eat" time to gain magical properties, but the downside is the rapid decay of their body. Their minds are still alive and sharps, but the body quickly became unable to support it; and since a mind without a body is basically useless, they have to put all their body in bandages to still be able to work.
Since they are basically immortal and they feed on time, they are very conservative and subject to high hubris. Quite like Elves, but more cunning and with more distrust towards strangers.
It's just an idea I launched because I thought having desert-biome races might be a good idea. I might expand it later if I have more ideas on it. And don't hesitate to give feedback and expand it yourselves!