アキシマクジラ（頸椎5） : ヒゲクジラ亜目 コククジラ科 アキシマクジラ（頸椎5） : ヒゲクジラ亜目 コククジラ科あきしまくじら（けいつい） : ひげくじらあもく こくくじらか

National Diet Library

The National Diet Library (NDL), founded in 1948, is the library which belongs to the Diet. The NDL assists the activities of the National Diet. The Library collects and conserves materials and information both from Japan and abroad, serving as a foundation of knowledge and culture and providing library services to administrative and judicial entities and Japanese citizens.