Report on the Radiolaria Collected by H.M.S. Challenger During the Years 1873-1876, Second Part: Subclass Osculosa; Index / Report on the Scientific Results of the Voyage of H.M.S. Challenger During the Years 1873-76, Vol. XVIII

by Ernst Haeckel

11. Euchitonia clathrata.

12. Euchitonia crevolensis.

13. Euchitonia grandis.

14. Euchitonia dubia.

II. Nassellaria.

15. Lithocircus haeckelii.

16. Lithocircus truncatus.

17. Lithocircus rhombus.

18. Cornutella pseudoprofunda.

19. Cornutella pseudoclathrata.