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INDEX.

_Ablepharus pannonicus_, 258

_Accentor collaris_, 316
_modularis_, 317

Accidental distribution, 12, 26

_Acipenser ruthenus_, 29

Acme, 323

Adams, Leith, 112, 150

AEgean continent, subsidence of, 272-273

Agriolimax, 284

_Alactaga jaculus_, 204

_Alca impennis_, 92, 14