Southern Yellow-cheeked Gibbon 
Spectral tarsier 
Spixs night monkey 
Sumatran orangutan 
Sunda slow loris 
Sykes monkey 
Tantalus monkey 
Toppin's titi 
Toque macaque 
Tufted capuchin 
Tufted capuchin 
Tufted gray langur 
Venezuelan red howler 
Verreauxs sifaka 
Vervet monkey 
Von der Deckens sifaka 
Weddell's Saddle-back Tamarin 
Wedge-capped capuchin 
Western gorilla 
Western hoolock gibbon 
Western lesser bamboo lemur 
Western lowland gorilla 
Western red colobus 
White-cheeked spider monkey