holomelas, i. 100 majori, i. 285 sericeus, i. 99, 100 verreauxi, i. 100, 102, 286 Prosimia, i. 65 melanocephala, i. 71 rufipes, i. 73 xanthomystax, i. 71 Protoadapis, i. 118; ii. 226, 238 crassicuspidens, ii. 118, 242 recticuspidens, i. 118, 242 Protopithecus, ii. 210, 227, 239 brasiliensis, ii. 210, 256 pruinosus, Semnopithecus, ii. 225 Pseudanthropos leucoprymnus, ii. 194 Pterycolobus vellerosus, ii. 95 pungens, Mixodectes, i. 116; ii. 252 Purple-faced Langur, ii. 112 pusillus, Cercopithecus, ii. 60 Chirogaleus, i. 55, 57 Microcebus, i. 57 pygerythra, Cercopithecus, ii. 60 pygerythrus, Cercopithecus, ii. 60, 61, 62 Chlorocebus, ii. 60 pygmæa, Cibuella, i. 136 Hapale, i. 135; ii. 255 pygmæus, Jacchus, i. 135 Pygothrix nemæus, ii. 134 pyrrhonotus, Cercopithecus, ii. 64, 65, 244 pyrrhus, Semnopithecus, ii. 125 radiatus, Cercocebus, ii. 35 rafflesii, Hylobates, ii. 152, 153 recticuspidens, Protoadapis, i. 118; ii. 242 recurvus, Nasalis, ii. 141, 142 Red-backed Saki, i. 187 Red-backed Titi, i. 158 Red-bellied Guenon, ii. 46 Red-bellied Lemur, i. 76 Red-bellied Spider-Monkey, i. 236, 237 Red-bellied Tamarin, i. 141 Red-bellied Titi, i. 164 Red-crested Guereza, ii. 88 Reddish-green Guenon, ii. 65 Red-eared Guenon, ii. 52 Red-faced Spider-Monkey, i. 237 Red-footed Douroucoli, i. 169 Red-footed Lemur, i. 72 Red-fronted Lemur, i. 72 Red Howler, i. 192 Red-ruffed Lemur, i. 69 Red-tailed Sportive-Lemur, i. 86 Red Titi, i. 160 Red Uakarí, i. 176 Reed Titi, i. 161 remensis, Plesiadapis, i. 118; ii. 241 rheso-similis, Macacus, ii. 20 rhesus, Macacus, ii. 20, 21, 22, 25, 26, 27, 28, 29, 248, 249 Simia, ii. 22 Rhinoceros tichorhinus, ii. 218 Rhinopithecus, ii. 140 Rhinopithecus roxellanæ, ii. 139 Ring-tailed Lemur, i. 76 robustum, Menotherium, i. 121 robustus, Cebus, i. 129, 212; ii. 256 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 Midas, i. 138; ii. 254 Simia, i. 138 roxellanæ, Nasalis, ii. 139 Rhinopithecus, ii. 132 Semnopithecus, ii. 101, 139 ruber, Cercopithecus, ii. 63, 65 Chlorocebus, ii. 63, 65 Lemur, i. 69 rubescens, Papio, i. 270 rubicunda, Ouakaria, i. 176 Pithecia, i. 176 rubicundus, Brachyurus, i. 176; ii. 255 Semnopithecus, ii. 128, 131, 249 rubra, Simia, ii. 63 rubriventer, Lemur, i. 76 rueppelli, Guereza, ii. 97 rueppellii, Gelada, i. 276 rufescens, Macacus, ii. 11, 249 Ruffed Lemur, i. 68 rufibarbata, Pithecia, i. 185 ruficaudatus, Lepidolemur, i. 86 Lepilemur, i. 86 rufifrons, Lemur, i. 72 rufimanus, Midas, i. 148 Mycetes, i. 197 rufipes, Lemur, i. 72; ii. 254