sericeus, Mico, i. [135]

Miocella, i. [135]

Propithecus, i. [99], [100]

Short-tailed Squirrel-Monkey, i. [154]

Siamang, ii. [120], [166], [167], [169]

Siamanga syndactyla, ii. [166]

siamensis, Macacus, ii. [129]

Semnopithecus, ii. [130], [138], [249]

siderolithicus, Microchærus, i. [116]

Sifaka, Black, i. [100]