Annotationes zoologicae japonenses / Nihon dōbutsugaku ihō - Nihon Dobutsu Gakkai. (Societas, 1915)

Bulletin - United States National Museum (G.P.O, 1963)

Cephalopoda Part 1 - Smithsonian Institution (Published for the Smithsonian Institution and the National Science Foundation, Washington, D.C., by the Israel Program for Scientific Translations, 1972)

The Cephalopoda - Chun, Carl, 1852 -1914 (Israel Program for Scientific Translations ; Springfield, Va. : available from the U. S. National Technical Information Service, 1975)

The Zoological record - Zoological Society of London. (J.V. Voorst, 1885)