Æpyornis, of Madagascar, 164
Æshna, from the Lias, 167
Agnopterus, European Eocene, 163
Agriochœrus, N. American Tertiary, 138
Agrion, from the Lias, 167
Alcephalus, Indian Miocene, 122
Aldabra Islands, land-tortoises of, 289
Aletornis, N. American Eocene, 163
Algeria, Post-Pliocene deposits and caves of, 111
Allen, Mr. J. A., on Zoological regions, 61