South American Howlers, ii. [191]

speciosus, Inuus, ii. [13]

Macacus, ii. [8], [13]

Spectral Tarsier, i. [20]

spectrum, Lemur, i. [20]

Tarsius, i. [20], [285]

sphinx, Papio, i. [253], [269]; ii. [244], [245], [246]

Cynocephalus, i. [268], [270], [271]

Spider-Monkey, Brown Woolly, i. [226]

Black-faced, i. [241]