Rivers, limiting the range of mammalia, 12
limiting the range of birds, 17
River-scene, in West Africa, 264
Rodentia, classification of, 90
range of Palæarctic genera of, 242
range of Ethiopian genera of, 304
range of Oriental genera of, 374
range of Australian genera of, 476
Rodentia, European Pliocene, 113
Miocene of Greece, 116