Published in: Haeckel, E. (1887). Report on the Radiolaria collected by H.M.S. Challenger during the years 1873-1876 Report on the scientific results of the voyage of H.M.S. Challenger during the years 1873-76 under the command of Captain George S. Nares and the late Captain Frank Tourle Thomson, R.N. ... Zoology - Vol. XVIII. Second Part Osculosa (Nasssellaria and Phaeodaria). pp. 889-1803. London, Edinburgh & Dublin: Published by order of Her Majesty's Government.