This hideous little darling is a rat-monkey, another speculative evolution critter. I'm still working on the write-up. Basically this is what happens to rats 15 million years after humans go extinct. I quite like rats; I wanted them to be a prosperous and widespread species. This one happens to be a male, as indicated by the "cape" of longer fur on the shoulders, which gives him a hunchbacked look. Females are slightly smaller and lack the fur cape. The species name honor Peter Jackson, whose movie "Braindead" featured a rat-monkey - fortunately, unlike their cinematic namesake, these rat-monkeys don't have poisonous saliva that turns people into zombies ;)

Sidebar
Upper: Detail of the four-digited forepaw. Rats had already pretty much lost the first (innermost) digit, so the rat-monkeys developed the second digit, the index finger) into a grasping thumb.
Center: Rat-monkey skull
Lower: Ancestral animal, the brown rat