Peratherium, European Miocene, 121

European Eocene, 126

Perchœrus, N. American Tertiary, 137

Perim Island, extinct mammalia of, 122

probable southern limit of old Palæarctic land, 362

Perissodactyla, N. American Tertiary, 135

Persia, birds of, 204

Phascolomys, Australian Post-Tertiary, 157

Phasianus, Miocene of Greece, 116

European Post-Pliocene, 161