ii. 348

AQUILINÆ, ii. 348

_Ara_, ii. 328

_Arachnechthra_, ii. 276

_Arachnothera_, ii. 277

ARAMIDÆ, ii. 357

_Aramides_, ii. 352

_Aramus_, ii. 357

_Arapaima_, ii. 454

_Arborophila_, ii. 338

ARCADÆ, ii. 534

_Archæomys_, ii. 238

_Archæopteryx_, Bavarian Oolite, i. 163

_Archibuteo_, ii. 348

Arctic shells, ii. 518 zone not a separate region, i. 68

_Arctitis_, ii. 195

_Arctocebus_, ii. 176

_Arctocephalus_, ii. 202

_Arctocyon_, European Eocene, i. 125