Squirrel-Monkey, i. [247], [152]
Black-headed, i. [155]
Common, i. [156]
St. John's Macaque, ii. [28]
Stachycolobus satanas, ii. [93]
Stairs' Guenon, ii. [73]
stairsi, Cercopithecus, ii. [73]
stampflii, Cercopithecus, ii. [49], [50], [245]
Stampfli's Guenon, ii. [50]