128, 129, 237, 238, 241, 242; ii. 254, 255 Chiropotes, i. 186 Sapajou, i. 241 aterrimus, Cercocebus, ii. 40, 245 Cercopithecus, ii. 40 atlanticus, Papio, ii. 212, 243 aubryi, Troglodytes, ii. 194 aulaxinus, Macacus, ii. 213 auratus, Mycetes, i. 193 Semnopithecus, ii. 128 aureus, Macacus, ii. 31, 32 aurita, Hapale, i. 134 auritus, Jacchus, i. 134 Semnopithecus, ii. 136 ausonianus, Macacus, ii. 213 Avahi Lemurs, i. 94 Woolly, i. 94 Avahis, i. 94; ii. 226, 238 laniger, i. 94; ii. 248 Aye aye, i. 14 azaræ, Cebus, i. 219; ii. 256 Nyctipithecus, i. 170 Simia, i. 170 Azara's Capuchin, i. 219 Douroucoli, i. 170 Babakoto, i. 108 Baboon, Anubis, i. 266 Arabian, i. 272, 274 Celebean Black, i. 281 Chacma, i. 263 Doguera, i. 262 East-African, i. 269 Gelada, i. 252, 276 Guinea, i. 269 Langheld's, i. 275 Thoth, i. 268 Yellow, i. 265 Baboons, i. 248, 252, 253; ii. 1 Gelada, i. 276 Malayan, i. 280 babouin, Cynocephalus, i. 262, 265 babuin, Cynocephalus, i. 268, 271, 276 Papio, i. 265; ii. 244, 245, 246 Bald Chimpanzee, ii. 199 Bald Uakarí, i. 177 bambolii, Oreopithecus, ii. 212, 243 Bandar, ii. 23 Banded Langur, ii. 126 Barbary Macaque, ii. 4, 6 Barbe's Langur, ii. 102 barbei, Presbytis, ii. 102 barbii, Semnopithecus, ii. 102, 249 barbatus, Cebus, i. 208 Mycetes, i. 195 Barrigudo, i. 221 bartletti, Ateles, i. 231 Bathrodon, i. 123; ii. 227, 239, 252 Bay Guereza, ii. 91 Bearded Guenons, ii. 44, 78 beelzebul, Alouatta, i. 197; ii. 255 Mycetes, i. 197 Simia, i. 197 belzebuth, Ateles, i. 244 Bengal Macaque, ii. 22, 23, 26 Monkey, ii. 23 bengalensis, Nycticebus, i. 33, 35 betillei, Palæolemur, i. 120 bicolor, Colobus, ii. 95 Hapale, i. 147 Midas, i. 147; ii. 255 Mycetes, i. 198 Pithecus, ii. 171 Semnopithecus, ii. 95 Seniocebus, i. 147 Black and Red Tamarin, i. 145 Black Apes, i. 252 Black-cheeked Guenon, ii. 49 Black-crested Langur, ii. 136 Black-eared Mouse-Lemur, i. 51 Black-faced Lemur, i. 73 Black-faced Spider-Monkey, i. 241 Black-footed Guenon, ii. 78 Black-footed Langur, ii. 135 Black-fronted Tamarin, i. 143 Black-fronted Titi, i. 164 Black Guereza, ii. 93 Black-handed Titi, i. 165 Black-headed Squirrel-Monkey, i. 155 Black-headed Uakarí, i. 175 Black Howler, i. 195 Black Lemur, i. 69 Black-limbed Guenons, ii. 44 Black Mangabey, ii. 40 Black Saki, i. 186 Black Sifaka, i. 100 Black-tailed Marmoset, i. 136 Blanc-nez, ii. 44 boliviensis, Callithrix, i. 155 Bonnet Macaque, ii. 34, 35, 36 Bonneted Capuchin, i. 218 Langur, ii. 103 Macaque, ii. 114 Tamarin, i. 143 Bosman's Potto, i. 28 boutourlinii, Cercopithecus, ii. 69 Boutourlini's Guenon, ii. 69 bouvieri, Piliocolobus, ii. 92 Brachyteles, i. 204, 224, 227, 228, 248; ii. 228, 239 arachnoides, i. 226, 227; ii. 256