FOEAMINIFERA OP THE WEST OE SCOTLAND. 299 



Figs. 19, 20. Lagena spumosa, Millett. Fig. 20. External shell broken away, showing internal structure. 



x 150. 

 Figs. 21,22. Lagena semilineata, Wright, x 113. 

 Figs. 23, 24. Lagena laevigata (Reuss). X 150. 

 Fig. 25. Lagena falcata, Chaster. Short form, x ICO. 

 Fig. 26. Lagena marginala (Walker & Boys), x 113. 

 Fig. 27. Lagena pulchella, var. hexagona, var. nov. x 113. 

 Figs. 28,29. Lagena lacunata, Burrows & Holland, x 113. 

 Figs. 30-34. Lagena reniformis, Sidebottom. Fig. 30. ' Runa' specimen. Figs. 31-34. ' Goldseeker' 



specimens, x 113. 

 Fig. 35. Nodusar.ia roemeri (Neugeboren). x 113. 



Plate 42. 



Figs. 1, 2. Nodosaria communis, d'Orbigny. Compressed or vaginuliue form, x 113. 



Figs. 3-5. Lingulina carinata, var. bicarinata, Sidebottom. Fig. 3. Side view of specimen with 



three chambers. Fig. 4. Ditto, normal specimen. Fig. 5. Edge view, x 176. 

 Figs. 6, 7. Lingulina carinata, var. seminuda, Hantken. Fig. 6. Side view. Fig. 7. Edge view. 



x 176. 

 Figs. 8-10. Frondicularia tenera (Bomemann). Fig. 8. Side view. Fig. 9. Edge view. Fig. 10. 



Oral view, x 113. 

 Figs. 11-14. Cristellaria convergens, Bornemann. Figs. 11-13. Side views. Fig. 14. Ed°-e view of 



fig. 11. Figs. 11, 14, x 64. Figs. 12, 13, x 13. 

 Figs. 15, 16. Polymorphinacylindroides, Roemer. Fig. 15. Side view. Fig. 16. Edge view, x 64. 

 Figs. 17-18. Sagrina dimorpha, Parker & Jones. Fig. 17. Side view. Fig. 18. Oral view, x 113. 

 Figs. 19, 20. Sphxroidina ? sp. Fig. 19. Side (oral) view. Fig. 20. Edge view, x 150. 

 Figs. 21-25. Spirillina vivipara, Ehrenberg, var. (i.) Coarsely perforate form. Fig. 21. Superior 



view. Fig. 22. Inferior view. (ii.) Papillate form. Figs. 23, 24. Inferior views. 



Fig. 25. Superior view. In fig. 25 the drawing is slightly diagrammatic, emphasising 



the crenelation of the test, x 113. 

 Figs. 26-30. Discorbina nitida (Williamson). (i.) High-domed megalospheric form. Fig. 26. 



Superior view. Fig. 27. Inferior view. Fig. 28. Edge view. (ii.) Lobulate and 



non-carinate form. Fig. 29. Superior view. Fig. 30. Inferior view, x 150. 

 Figs. 31-33. Truncatulina tenera, Brady. Fig. 31. Superior view. Fig. 32. Inferior view. Fig. 33. 



Edge view, x 64. 

 Figs. 34-37. Pulvinulina karsteni (Reuss). Fig. 34. Superior view. Fig. 35. Inferior view. Fig. 36. 



Edge (dorsal) view. Fig. 37. Edge (oral) view. 



Plate 43. 



Figs. 1-3. Kotalia schroeteriana, Parker & Jones. Fig. 1. Superior view. Fig. 2. Inferior view. 



Fig. 3. Edge (oral) view. x 113. 

 Figs. 4-7. Nonionina depressula (Walker & Jacob). Figs. 4-6. Side view. Fig. 7. Edge view. 



x 113. 

 Figs. 8-10. Nonionina stelligera, d'Orbigny. Figs. 8, 9. Side views. Fig. 10. Edge view, x 113. 

 Figs. 11-19. Polystomella faba (Fichtel & Moll), (i.) Inflated form. Figs. 11-13. Side views. 



Fig. 14. Edge view. (ii.) Compressed type. Figs. 15-18. Side views. Fig. 19. 



Edge view, x 113. 

 Figs. 20-22. Polystomella decipiens, Costa. Figs. 20, 21. Side views. Fig. 22. Edge view, x 64. 



