That's definitely more new primates than would be realistic, but I'd be very happy with that roster. Really the only primate I would add onto it is the Bald Uakari.
Since this was originally a primate topic, let me show you the schmidt's red-tailed monkey (or guenon). It lives in Central Africa. It isn't kept much in european zoos, but some american zoos have them. I think it is a beautiful monkey and would like it in game.