Monkeys on Pulau Weh. (Macaques?) They have longish tails and white eyebrows. Accustomed to eating food thrown by visitors. If it is a macaque, I'm thinking Macaca fascicularis.
The Crab-eating Macaque (Macaca fascicularis) is a primarily arboreal macaque native to Southeast Asia. It is also called the Cynomolgus Monkey, Philippine Monkey and the Long-tailed Macaque.
