PLATE IX. 



MlLIOLINA. — SPIROLOCULTNA. 



Diam. Page 



Figure 1. — Miliolina, sp. ? — or possibly an early stage of 



Articulina, . . . . x 50 183 



2-4. — Miliolina reticulata, d'Orbigny, sp., . x 25 177 

 Figs. 2 a, 3, 4. Lateral aspect ; 2 b, oral aspect. 



5, 6. — Spiroloculina excavata, d'Orbigny, . . x 30 151 

 Figs. 5 a, 6. Lateral aspect ; 5 b, oral aspect. 



„ 7, 8. — Spiroloculina robvsta, n. sp., . . x 20 150 



Figs. 7 a, 8. Lateral aspect ; 7 b, oral aspect. 



,, 9, 10. — Spiroloculina nitida, d'Orbigny, . . . . 149 



Fig. 9. a, Lateral aspect ; b, oral aspect, . x 50 



Fig. 10. Lateral aspect, . . . x 40 



„ 11. — Spiroloculina planulata, Lamarck, sp., . x 35 148 

 a, Lateral aspect ; b, oral aspect. 



„ 12-14. — Spiroloculina frag ilissima, n. sp., . . x 50 149 

 Figs. 12 a, 13, 14. Lateral aspect ; 12 b, oral aspect. 



,. 15-17. — Spiroloculina limbata, d'Orbigny, . • 150 



Fig. 15. a, Lateral aspect ; 6, oral aspect, . x 50 



Fig. 1 7. a, Lateral aspect ; b, oral aspect, . x 30 



Fig. 1G. Transverse section of the shell, . x 30 



