@ zooman : thank you ! @ Jabiru : to be honest, I don't know. I'm at the moment not fimilar with the Gorillas at Apenheul but I already have a year-card for 2014, so I guess next year I will learn them better !
@ Jaribu : Just found a serie of pictures of the Gorilla-troop at a guide-book and from these pictures I also would say it's Mintha.