Laopithecus, i. [121]; ii. [252]

Rock Ape, ii. [7]

Rock-Macaque, Formosan, ii. [28], [29]

Rock-Monkey, Hainan, ii. [24]

roloway, Cercopithecus, ii. [81]

Roloway, ii. [81]

rostratum, Tomitherium, i. [121]; ii. [252]

Round-headed Sportive-Lemur, i. [89]

rosalia, Hapale, i. [138]

Leontopithecus, i. [138]