Note 3 — Chapter I · INTRODUCTION.

The term endemic will be employed throughout this work as applied to species peculiar to a country and not found elsewhere. Autochthonous will be used in speaking of a species which has originated in a country to which, however, it is not peculiar; e.g., the Chamois is an autochthonous Alpine species, but occurs also in the Pyrenees and Caucasus. An indigenous species is one native to a country, as opposed to the term "introduced," and is applicable to all species which have reached it by ordinary migration.