coleoptera of, i. 342

terrestrial mollusca of, i. 343

zoological relations of islands of, i. 345
recent geographical changes in, i. 357
probable origin of fauna of, i. 359
Inia, ii. 209

Insectivora, European Miocene, i. 117
N. American Post-Pliocene, i. 129
N. American Tertiary, i. 133
Insectivora, classification of, i. 87

of the Palearctic region, i. 181
of N. China and E. Thibet, i. 222
range of Palearctic genera of, i. 239
of Madagascar, i. 273

range of Ethiopian genera of, i. 301
of the Oriental region, i. 315
range of Oriental genera of, i. 372
range of Australian genera of, i. 476
INSECTIVORA, ii. 186

INSECTIVORA,

general remarks on the

distribution of, ii. 191
summary and conclusion, ii. 541
Insects, means of dispersal of, i. 32
tenacity of life of, i. 33

adapted to special conditions, i. 33
groups selected for the study of their
geographical distribution, i. 102

antiquity of the genera of, í. 166
fossil of European Miocene, i. 166
European Cretaceous, i. 167
European Wealden, i. 167
Palæozoic, i. 168
Palearctic, i. 187

of Central Europe, i. 196

of the Mediterranean sub-region, i. 205

of the Siberian sub-region, i. 220

of the Manchurian sub-region, i. 227

of the Ethiopian region, i. 255

of the E African sub-region, i. 260
of W. African, i. 265

S. African, i. 268

of Madagascar, i. 282

general remarks on, i. 284

of tropical Africa and America, probable

cause of similarities in, i. 291

of Indo-Chinese sub-region, i. 332

of the Oriental region, i. 318

of Ceylon, i. 327

of Indo-Malay sub-region, i. 341

statistics of collecting in the various
islands of the Malay Archipelago, i. 343
of the Australian region, i. 403

of New Guinea, i. 417

of the Moluccas, i. 420
of the Timor group, i. 426

of Celebes, i. 454

of New Zealand, i. 458

scarcity of, in New Zealand, i. 462
influence of, on the flora, i. 463

of the Neotropical region, ii. 13
of S. Temperate America, ii. 42

of S. Temperate America, Palæarctic
affinity of, ii. 45

of the Mexican sub-region, ii. 55

of the Antilles, ii. 73

of the Nearctic region, ii. 122

of Canada, ii. 137

distribution of, ii. 468

range of, in time, ii. 469

summary and conclusion, ii 1.50

lines of migration of, ii. 551

Iodopleura, ii. 102

Iolama, ii. 107

Iolaus, ii. 477
Iole, ii. 267
Iora, ii. 267
Iphias, ii. 478

ii. 394
IPHISADÆ, ii. 394
Irena, ii. 269
Iridina, ii. 534

Iridornis, ii. 98

Irrisor, ii. 318

IRRISORIDÆ, ii. 318

Isacis, N. American Tertiary, i 133
Ischcognathus, ii. 375

Ischyromys, N. American Tertiary, i. 140
ii. 236

Islands, N. European, zoology of, i. 197
of the Mediterranean sub-region, i. 206
of the W. African sub-region, i. 265
of the Ethiopian region, i. 269
Mascarene, i. 280

of the Indo-Chinese sub-region, i. 333

of the Indo-Malay sub-region, i. 345

Labeo, ii. 451

Labrax, ii. 425

LABRIDE, ii. 437
Labrus, ii. 437

LABYRINTHICI, ii. 434

Lacerta, ii. 391

LACERTIDE, ii. 390

Lacertilia, classification of, i. 99

LACERTILIA, ii. 388

general remarks on the distribution of,

ii. 403

fossil, ii. 404

Lacuna, ií. 510

Ladrone Islands, birds of, i. 444

Læmargus, ii. 461

Læmosthenes, ii. 489

Laosopis, ii. 477

Lafresnaya, ii. 107
Lagenocetus, ii. 208
Lagenorhynchus, ii. 209
Lagidium, ii. 237
LAGOMYIDÆ, ii. 242

Lagomys. European Pliocene, i. 113
European Miocene, i. 120
ii. 242

Lagopus, ii. 339

Lagorchestes, ii. 251

Lagostomus, in Brazilian caves, i. 145

8. American Pliocene, i. 147
ii. 237

Lagothrix, ii. 174

Lais, ii. 442

Lake Baikal, seals of, i. 218

ii. 206

Lalage, ii. 269

Laletes. ii. 280

LAMIIDE, ii. 498

Lamna, ii. 460

LAMNIDE, ii. 460

Lampornis, ii. 107
Lampreys, ii. 463
Lamprima, ii. 493
Lampris, ii. 429
Lamprocolius, ii. 288
Lamprolama, ii. 107
Lamrophis, ii. 380

Lampropsar, ii. 282

Lampropygia, ii. 108

Lamprospilus, ii. 477

Lamprospiza, ii. 99

Lamprotes, ii. 98

Lancelet, ii. 464

Land-lizards, ii. 391

Land and water, proportions of, i. 35

Land and fresh-water shells, antiquity of the

genera of, i. 168

table of Ethiopian families of, i. 299
of the Oriental region, i. 318

table of Oriental families of, i. 369

of the Australian region, i. 404
table of Australian families of, i. 472
of the Neotropical region, ii. 13

of the Antilles, ii. 73

table of Neotropical families of, ii. 90

of the Nearctic region, ii. 122
Nearctic families of, ii. 143

LEPIDOPTERA, ii. 470
Lepidosiren, ii. 458

LEPIDOSTEIDÆ, ii. 459

Lepidosteus, ii. 459

LEPIDOSTERNIDÆ, ii. 389

Lepidosternon, ii. 389

Lepilemur, ii. 176

Lepistes, ii. 450

LEPORIDÆ, ii. 242

Leporinus, ii. 445

Lepricornis, ii. 476

Leprodera, ii. 501

Leptalis, ii. 478

VOL. II.-38