Tree Dwellers

All Tree Dwellers were Monkey-like Humanoid Creatures 

that are looked like anthropomorphic Monkeys and they live 

in the Channelwood in "Myst" I remember. 

Look! This is the Head of the Tree Dweller on the Wall being stuffed. 

And this is a rotting Tree Dweller's Head in a Crate in Achenar's Cache from being 

indicated by a bloody chopping Box with a Butcher Knife on it 

that's why Sirrus and Achenar have slaughtered all the Tree Dwellers in the Channelwood.