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 Fiji, Tonga, and Samoa, i. 443 Society and Marquesas, i. 444 New Caledonia and New Hebrides, i. 445 Sandwich, i. 446 of New Zealand sub-region, i. 453 Norfolk, i. 453 Lord Howe's, i. 454 Chatham, i. 454 Auckland, i. 455 of Tropical S. America, ii. 29 of the Mexican sub-region, ii. 59 of Eastern United States, ii. 134 peculiar colours of pigeons in, ii. 336 abundance of land-shells in, ii. 525

_Isodactylium_, ii. 413

_Ispidina_, ii. 316

_Issiodromys_, European Pliocene, i. 113