Parrots, classification of, 96
Passeres, arrangement of, 94
range of Palæarctic genera of, 243
range of Ethiopian genera of, 306
range of Oriental genera of, 375
range of Australian genera of, 478
Patriofelis, N. American Tertiary, 134
Peculiar groups, geographically, how defined, 184
Pelagornis, European Miocene, 162
Pelonax, N. American Tertiary, 138