SPUMELLARIA ET NASSELLARIA. TAF. 15. 



The abjage ni'B.M.S' ChaDenger! 



Radiolaria PI 2(i 



Ettarekel aal Ä.G 



HELIOSPHAERA. ;>> - .') ACANTHOS PHAERA II) 11 CERIOSPHAERA 



MillBch,Jena,Lithogr 



