The writers of "Nihonshoki" changed old regional unit 'kori評 (hyo)' to new unit 'kori郡 (gun)' which was used while the writers were alive, therefore, Takechi-no-kori高市郡 (Takechi-gun) is considered to have been written as Takechi-no-kori高市評 (Takechi-hyo).
書紀は当時の「評」を編纂当時の制度に書き換えて「郡」と記すので、高市郡とは高市評のことである。