This is the flying lemur, or colugo, also known as the order Dermoptera – the “skin-wings.” They’re related to shrews and bats moreso than real lemurs, which is too bad. It’d be cool to have these a little closer on the family tree. They’re as big as cats and they hang glide through the jungles of South Asia. You’re hiking along, hacking your way through lianas and climbing over giant roots, when all of a sudden, look out! Colugo!
Illustration from Webster’s New International Dictionary of the English Language, 1911, G & C Miriam Co. Springfield, MA, [found here.]