the Jester
Legend
There is also the dakon from the 1e Fiend Folio, which (IIRC) also appeared in the 2e FF MC Appendix and there was a bit note on them in the 2e Monstrous Manual. Intelligent apes indeed.
If that's a skinflap under the arm, those are totally Yarzarians. Which, btw, were probably based on a cheap plastic toy.
Uh, I like this:
Gorilla of the Gas Bags - Pulp Covers
I'm reluctant to use hadrazee as this is for an Isle of Dread mod and I'm already using phanatons! 'That island where everything has huge skin flaps and can glide' is somewhat less ominous.![]()