SPUMELLARIA ET NASSELLARIA. TAF. 61. 



TIh' Viiyngf o f ll.M.S. Challenger" 



Radiolaria l'l 95 



A Stach, Dt 



1-13 ZYGOSPYRIS. 14 10. THOLOSPYRIS . li ü). PHORMOSPYR IS , 



20. ANDROSPYRIS. 



