Argus pheasant, figure of, 339
peculiarity, in display of plumage, and confirmation of Mr. Darwin's views, 340
Artiodactyla, European Eocene, 126
N. American Tertiary, 137
S. American Pliocene, 146
Arvicola, European Pliocene, 113
in Brazilian caves, 145
S. American Pliocene, 147
S. American Eocene, 148
Auchena, N. American Post-Pliocene, 130