North America, remarks on Post-Pliocene fauna of, 130
Post-Pliocene fauna of, partly derived from S. America, 131
extinct birds of, 163
North Africa, zoological relations of, 202
Notharctos, N. American Tertiary, 133
Notornis of New Zealand, 455
Nototherium, Australian Post-Tertiary, 157
O.
Ochotherium, in Brazilian caves, 145
Octodontidæ, S. American Pliocene, 147