Tertiary Foraminifera from Borneo. 263 



Spirohculina ?, Planispirina, and to the subfamily Rotalinas ; 

 but we have not thought it worth while to attempt to refer 

 such to particular " species," since we have nothing but 

 sections cut in more or less indeterminate directions. 



EXPLANATION OF THE PLATES. 



Plate IX. 

 Nummulk.es javanus, Verbeek. Form B. 



Fig. 1. Vertical section, x 3. (13. M.) 

 Fig. 2. Horizontal section, X 10. (B. M.) 

 Fig. 3. " Filets cloisonuaires," X 10. (B, M.) 



Nummtdites javanus. Form A-. 



Fig. 4. Vertical section, X 15. (B. M.) 

 Fig. 5. Ditto, X 10. (B. M.) 



Nummulit.es, sp. iudet. 

 Fig. 6. Vertical section, X 12. (M.) 



Orbitoides (Lepidocyclina) Vej-beeki, sp. n. Form A, 



Fig. 7. Vertical section, X 13. (C) 



Fig. 8. Horizontal section on median plane, X 20. (B. M.) 



Fig. 9. Ditto, x 30. (B. M.) 



Fig. 10. Horizontal section above median plane, X 13. (0.) 



Orbitoides (Lepidocyclina) Verbeeki. Form B. 

 Fig. 11. Horizontal section on median plane, x 25. (B. M.) 



Pi-ate X. 



Orbitoides (Lepidocyclina) Verbeeki Form A. 

 Fig. L Exterior, x 9, (C.) 



Orbitoides (Discocyclina) stellata, dWrcliiac. 



Fig. 2. Section approximately horizontal and above median plane, 

 X 20. (B. M.) 



Orbitoides (Discocyclina), spp. 



Fig. 3. Vertical section, x 12. (B. M.) 

 Fig. 4. Ditto, X 25. (M.) 



Cycloclypeus ?, sp. indtit. 



Fig. 5. Section, x 11. (B. M.) 



Linderina, sp. indet. 



Fig. 6. Vertical section, x 30. (B. M.) 



