Jay, J.C. 1857 ["1856"]. Report on the shells collected by the Japan Expedition together with a list of Japan shells. In:Perry, M.C. & Hawks, F.L. (eds.), Narrative of the expedition of an American squadron to the China Sea and Japan, performed in the year 1852, 1853 and 1854, under the command of Commodore M. C. Perry, United States Navy, by order of the Government of the United States, Vol. 2. Tucker, Washington. pp. 289–297, pls 1–5. BHL