Noturus, ii. 442

Nucifraga, i 273

NUCLEO-BRANCHIATA, 1 531

Nueras, ii. 891

Numenius, ii. 353

NUMIDINE, ii. 340

Numida, ii. 340

Nuria, ii. 452

Nuthatches, ii. 265
Nutria, ii. 199
Nyctala, ii. 350
Nyctalatinus, ii. 350
Nyctalemon, ii. 482
Nyctalops, ii. 350
Nyctea, ii. 350
Nyctereutes, ii. 197
Nycteris, ii. 182
Nyctibius, ii. 319
Nycticorax, ii. 359
Nyctidromius, ii. 320
Nyctiornis, ii. 312
Nyctipithecus, ii. 175
Nyctiprogne, ii. 320
Nymphalis, ii. 474

NYMPHALIDE, ii. 473

Nymphicus, ii. 325

Nymphidium, ii. 476

Oreonectes, ii. 453
Oreonympha, ii. 108
Oreoperdix, ii. 338

OREOPHASINÆ, ii. 343

Oreophasis, ii. 343

Oreophilus, ii. 356

Oreopyra, ii. 107

Oreortyx, ii. 339
Oreoscoptes, ii. 256
Oreothraupis, ii. 99
Oreotrochilus, ii. 107
Orestias, ii. 450

Oriental region, defined, i. 75
subdivisions of, i 75
description of, i. 314

zoological features of, i. 315
mammalia of, i. 315

birds of, i. 316

reptiles of, i. 317

amphibia of, i. 317

fresh-water fishes of, i. 318

summary of vertebrata of, i. 318

insects of, i. 318

sub-regions of, i. 321

concluding remarks on, i. 362

tables of distribution of animals of, i. 364
Oriental relations of W. African sub-region, i.

Palearctic region, land-shells of, i. 190

sub-regions of, i. 180

general conclusions on the fauna of, i. 231
tables of distribution of animals of, i. 233
Palaacodon, N. American Tertiary, i 133
Palaetus, European Miocene, i. 162
Palægithalus, European Eocene, i. 162
Palalodus, European Miocene, i. 162
Palæocastor, N. American Tertiary, i. 140
ii. 234

Palæocercus, European Miocene, i. 162
Paleochorus, European Miocene, i. 119
ii. 215
Palæocyon, ii. 198

Palaohieraz, European Miocene, i. 162
Palæolagus, N. American Tertiary, i. 140
Palæolama, S. American Pliocene, i. 147
ii. 217

Palæomephitis, European Miocene, i. 118
ii. 200

Palæomeryx, European Miocene, i 120
ii. 220

Palæomys, European Miocene, i. 121
ii. 238

Palæontina oolitica, Oolitic insect, i. 167
Paleontology, i 107

how best studied in its bearing on geo-
graphical distribution, i. 168

as an introduction to the study of geo-
graphical distribution, concluding re-
marks on, i. 169

Palæonyctis, European Eocene, i 125
Palæoperdix, European Miocene, i 161
Palæophrynus, European Miocene, i. 166

Palæoreas, Miocene of Greece, i. 116
Palæornis, ii, 326

PALEORNITHIDÆ, ii. 326

Palæonyctis, ii. 196, 206

Palæortyx, European Miocene, i. 161

Palæoryx, Miocene of Greece, i. 116
Palæospalar, i. 111

European Miocene, i. 117
ii. 190

Palaosyops, N. American Tertiary, i. 136
Palæotherida, European Eocene, i. 125
Palæotherium, Enropean Eocene, i. 125
S. American Eocene, i 148

Palæotragus, Miocene of Greece, i. 116
Palaotringa, N. American Cretaceous, i. 164
Palamedea, ii. 361

PALAMEDEIDÆ, ii. 361

Palapterygide of New Zealand, i. 164

PALAPTERYGIDÆ, ii. 370

Palapteryx, ii. 370

Palestine, birds of, i. 203

Pallasia, ii. 289

Paloplotherium, European Miocene, i. 119

European Eocene, i. 125

Paludicola, ii. 416

Paludina, Eocene, i. 169

European Secondary, i. 169
ii. 510

PALUDINIDE, ii. 510

Pampas, Pliocene deposits of, i. 146
Pamphila, ii. 480

Panda, of Nepaul and E. Thibet, i. 222
Himalayan, figure of, i. 331