Nasua, in Brazilian caves, 144
Nearctic region, defined, 79
subdivisions of, 80
distinct from Palæarctic, 79
Necrornis, European Miocene, 161
Neotropical region, defined, 78
subdivisions of, 78
relations of W. African sub-region with, 265
Nesodon, S. American Pliocene, 147
Newton, Professor, on position of Menuridæ and Atrichiidæ, 95