originating where it is found; "the autochthonal fauna of Australia includes the kangaroo"; "autochthonous rocks and people and folktales"; "endemic folkways"; "the Ainu are indigenous to the northernmost islands of Japan"それが見つけられた発祥固有
例:The Ainu are indigenous to the northernmost islands of Japan. アイヌは日本の最北の島の原住民である。