Figs. 5, 6, 7. Lituola nautiloidea, Lamarck. Chalk.
Fig. 8. Spirolina depressa, Lamarck. This and the specimens to fig. 21 inclusive, are tertiary fossils.
Fig. 9. Spirolina cylindracea, Lamarck.
Fig. 10. Orthocerina clavulus.
Fig. 11. Biloculina ringens, Lamarck.
Figs. 12, & 13. Quinqueloculina cor anguinum, Lamarck.
Figs. 14, 15, & 16. Quinqueloculina.
Figs. 17, 18, 19. Triloculina trigonula, Lamarck.
Fig. 20. Quinqueloculina opposita, Lamarck.
Fig. 21. Peneroloplis opercularis.