'Die Voyage of H.M.S. Challenger ". 



Radiolaria. PI . 2 8 . 



i Haeckel and IGiltscKDel 



1 .2 ANTHOMMA. 3. HELIOSOMA, 4 -7. HALIOMMA 



8. ELATOMMA. 



EjSdlts rih, Jena , Litho gr . 



