PLATE I 



Figs. 1-4. FlitUia soluia, sp.n. (No. 11): x 15. Figs. 1, 2, edge views. Fig. 3, front view. 

 Fig. 4, end-oral view. 



Figs. 5-7. Cornuspira diffusa, Heron-Allen and Earland (No. 32): x 25. Figs. 5, 6, 

 fragments. Fig. 7, abnormal fragment. 



Figs. 8, 9. Astrorhisa triangularis, sp.n. (No. 36): x 16. 



Figs. 10-12. Pelosiiia fusifonnis, sp.n. (No. 41): x 19. Fig. 10, specimen with produced 

 neck. Fig. 11, neck broken away. Fig. 12, in section. 



Figs. 13-15. Pelosiiia variabilis, Brady, var.n. constricta (No. 43). Fig. 13, a South 

 Georgia specimen : x 14. Figs. 14, 1 5 , Antarctic specimens : x 6. 



Figs. 16-21. Vanhoeffenella gaussi, Rhumbler (No. 38): x 21. Fig. 16, early stage. 

 Figs. i8, 19, advanced stages. Figs. 17, 20, 21, stages of subdivision. 



Fig. 22. Vanhoeffenella oculus, sp.n. (No. 39): x 21. 



Figs. 23, 24. Storthosphaera elongata, Cushman, var.n. impudica (No. 45): x 18. 



Fig. 25. Bathysiphon rufescens, Cushman (No. 52): x 14. 



Fig. 26. Bathysiphon capillare, de Folin (No. 51): x 15. 



Fig. 27. Psammosphaera rustica, Heron-Allen and Earland (No. 58): x 19. 



Figs. 28, 29. Proteonina decorata, sp.n. (No. 63): x 26. Fig. 28, side view. Fig. 29, 

 end-oral view. 



Figs. 30, 31. Proteonina tubulata (Rhumbler) (No. 64): x 21. 



Fig. 32. Astrorhiza limicola, Sandahl (No. 34): x 9. Specimen incorporating sponge 

 spicules. 



