Viscacha, ii. 237

Vitrina, ii. 516

Viverra, European Pliocene, i. 112

European Miocene, i. 118

ii. 195

Viverricula, ii. 195

Viverridæ, European Miocene, i. 118

European Eocene, i. 125

VIVERRIDÆ, ii. 194

Vivia, ii. 303

Volatinia, ii. 284

Voluta, ii. 508

Volutes, ii. 508

VOLUTIDÆ, ii. 508

Volvocivora, ii. 269

Vulpes, ii. 197

Vultur, ii. 346

VULTURIDÆ, ii. 345

VULTURINÆ, ii. 346

W.

Wagtails, ii. 290

Walden, Viscount, on birds of Philippine islands, i. 346

on birds of Celebes, i. 428

on arrangement of the Timaliidæ, ii. 261

Wallago, ii. 441

Wall-lizards, ii. 399

Walrus, ii. 203

Wart-snakes, ii. 382

Washakius, N. American Tertiary, i. 134

Waterhouse, Mr. G. R., on classification of rodentia, i. 90

on classification of marsupials, i. 91

Water-lizards, ii. 389

Weaver-finches, ii. 286

West African sub-region, description of, i. 262

mammalia of, i. 262

birds of, i. 262

Oriental or Malayan element in, i. 263

river scene with characteristic animals, i. 264

reptiles of, i. 264

amphibia of, i. 264

Oriental and Neotropical relations of, i. 265

insects of, i. 265

land-shells of, i. 265

islands of, i. 265

West Australia, peculiar birds of, i. 441

Whelks, ii. 507

Whip-snakes, ii. 379

Whydah finch of W. Africa, figure of, i. 264

Wing-shells, ii. 507

ii. 533

Wollaston, Mr. T. V., on the Coleoptera of the Atlantic Islands, i. 209

on the wings of the Madeiran beetles, i. 211

on the origin of the insect fauna of the Atlantic Islands, i. 214

on the Coleoptera of the Cape Verd Islands, i. 215

on the beetles of St. Helena, i. 270

Wombats, ii. 253

Woodpeckers, ii. 302

Wood-warblers, ii. 278

Woolly monkeys, ii. 174

Wrens, ii. 263

Wrynecks, ii. 304

X.

Xanthocephalus, ii. 282

Xantholæma, ii. 306

Xanthomelus, ii. 275

Xanthopygia, ii. 270

Xanthosomus, ii. 282

Xanthotis, ii. 275

Xema, ii. 364

Xenelaphis, ii. 376

Xenica, ii. 471

Xenicus, ii. 265

Xenochrophys, ii. 375

Xenocypris, ii. 452

Xenodermus, ii. 376

Xenodon, ii. 375

XENOPELTIDÆ, ii. 373

Xenopeltis, ii. 373

Xenophrys, ii. 421

Xenopipo, ii. 102

Xenops, ii. 103

Xenorhina, ii. 415

XENORHINIDÆ, ii. 415

Xenospingus, ii. 284

Xenurelaps, ii. 383

Xenurus, in Brazilian caves, i. 145

ii. 246

Xiphias, ii. 430

Xiphidiopicus, ii. 303

XIPHIIDÆ, ii. 430

Xiphius, ii. 208

Xiphocolaptes, ii. 103

Xiphodontidæ, European Miocene, i. 119

Xipholena, ii. 102

Xiphorhampus, ii. 445

Xiphorhynchus, ii. 103

Xiphostoma, ii. 445

Xystrocera, ii. 501

Y.

Ypthima, ii. 471

Yuhina, ii. 266

YUNGIDÆ, ii. 304

Yungipicus, ii. 303

Yunx, ii. 304

Z.

Zabrus, ii. 489

Zalophus, ii. 203

Zamenis, ii. 375

Zanclostomus, ii. 309

Zaocys, ii. 375

Zebras, ii. 211

Zegris, ii. 478

Zemeros, ii. 475

Zenaida, ii. 333

Zenaidura, ii. 332

Zephyrus, ii. 477

Zeuglodon, ii. 210

Zeuglodontidæ, N. American Tertiary, i. 140

ii. 210

Zeus, ii. 429

Zeuxidia, ii. 472

Zoarces, ii. 431

Zonites, ii. 516

Zonites priscus, Palæozoic, i. 169

Zonotrichia, ii. 284

ZONURIDÆ, ii. 391

Zonurus, ii. 392

Zoological characteristics of Palæarctic region, i. 181

Ethiopian region, i. 252

Oriental region, i. 315

Australian region, i. 390

of Neotropical region, ii. 5

of Nearctic region, ii. 115

Zoological regions, discussion on, i. 50

their origin and relations, ii. 155-161

Zoothera, ii. 256

Zootoca, ii. 391

Zosterops, ii. 277

Zygæna, ii. 481

ZYGÆNIDÆ, ii. 481

Zygnopsis, ii. 398