298 MESSES. E. HERON-ALLEN AND A. EAELAND ON THE 



EXPLANATION OF THE PLATES. 

 Plate 39. 



Figs. 1-3. Spiroloculina acutimargo, Brady, var. concava, Wiesner. Fig. 1. Superior or convex surface. 



Fig. 2. Inferior or concave surface. Fig. 3. Edge view. X 113. 

 Figs. 4-6. Miliolina bucculenta, Brady. Fig. 4. Front view. Fig. 5. Dorsal view. Fig. 6. Oral 



view, x 48. 

 Figs. 7-9. Miliolina suborbicularis (d'Orbigny). Fig. 7. Front view. Fig. 8. Dorsal view. Fig. 9. 



Edge or oral view, x 64. 

 Figs. 10-18. Miliolina pygmeea (Reuss). (i.) Milioline type. Fig. 10. Young specimen. Figs. 11-15. 



Various stages, side views. Fig. 16. Oral view, (ii.) Spiroloculine type. Fig. 17. 



Side view. Fig. 18. Oral view, x 113. 

 Figs. 19-27. Miliolina candeiana (d'Orbigny). Figs. 19, 20. Young or Spiroloculine form. Fig. 21. 



Transition from Spiroloculine to Milioline form. Fig. 22. Oral view of young Milioline 



form. Fig. 23. Ditto. Edge view. Fig. 24. Adult Milioline form. Front view. 



Fig. 25. Ditto. Dorsal view. Fig. 26. Ditto. Edge view. Fig. 27. Ditto. Oral 



view, x 113. 

 Figs. 28-31. Miliolina stelligera (Sclilumberger). Fig. 28. Dorsal view. Fig. 29. Edge view. Fig. 30. 



Front view. Fig. 30. Oral (or apical) view, x 113. 

 Figs. 32-34. Planispirina sigmoidea, Brady. Figs. 32, 33. Side views. Fig. 34. Oral (or apical) view. 



x 113. 



Plate 40. 



Figs. 1-9. Miliolina ferussacii (d'Orbigny). Figs. 1-3. Front views, various stages of growth. 



Figs. 4-6. Dorsal view, ditto. Figs. 7-8. Edge views. Fig. 9. Oral view. Figs. 1, 2, 



6, 9, x 48. Figs. 4, 7, x 64. Figs. 3, 5, 8, x 30. 

 Figs. 10, 11. Cornuspira angigyra (Reuss). Fig. 10. Side view. Fig. 11. Edge view. X 113. 

 Figs. 12, 13. Haplophragmium canariense (d'Orbigny). Abnormal specimen. X 64. 

 Fig. 14. Haplophragmium pseudospir ale (Williamson), x 113. 

 Figs. 15-18. Haplophragmium runianum, sp. nov. Fig. 15. Side view. Fig. 16. Ditto, showing traces 



of septation. Fig. 17. Edge view. Fig. 18. Optical section ; Balsam mount, showing 



septa of varying thicknesses. Figs. 15, 16, 17, x 113. Fig. 18, x 150. 

 Figs. 19-21. Trochammina nitida, Brady. Fig. 19. Superior view. Fig. 20. Inferior view. Fig. 21. 



Edge (oral) view, x 113. 

 Figs. 22, 23. Textularia concava, var. heterostoma, Fornasini. Fig. 22. Side view. Fig. 23. Edge 



(oral) view, x 64. 



Plate 41. 



Figs. 1, 2. Textularia candeiana, d'Orbigny. Fig. 1. Side view. Fig. 2. Edge (oral) view, x 64. 



Fig. 3. Bulimina echinata, d'Orbigny. x 113. 



Figs. 4-9. Bulimina elegatis, vht. exilis, Brady. Figs. 4, 5, 9, showing aperture. X 113. 



Figs. 10-14. Bolivina te.U'darioides, Reuss. Figs. 10-12. Side views. Fig. 13. Side view of strongly 



limbate specimen. Fig. 14. Edge view, x 1 13. 

 Fig. 15. Bolivina beyrichi, Reuss. x 150. 

 Fig. 16. Lagena hispida, Reuss. x 170. 

 Figs. 17, 18. Lagena coslata (Williamson). Fig. 17. Side view. Fig. 18. Oral view, x 150. 



