DESCRIPTION OF A LIMESTONE OF LOWER MIOCENE AGE. 301 
EXPLANATION OF PLATES. 
Plate VII. 
Carpenteria capitata, Jones and Chapman. Section nearly 
vertical to the plane of growth. x 26. 
. Operculina complanata, Defrance, and Amphistegina lessonit, 
d’Orb. Several vertical sections. x 26. 
. Lepidocyclina sumatrensis, Brady sp. Vertical section. 
x 13. | 
. Vertical section of fish tooth (? Chrysophrys), showing 
vasodentinal structure. 
Plate VIII. 
Lepidocyclina Verbeeki, Newton and Holland sp., var. 
papuaensis, nov. Form 4. Vertical section. x 8. 
. L. Verbeeki var. papuaensis, nov. Form A. Vertical 
section. x 13. 
oh ie Murrayana, Jones and Chapman sp. Form 4. Ver- 
tical section. x 16, 
Plate IX. 
Lepidocyclina Andrewsiana, Jones and Chapman sp. Form 
A. Vertical section: Amphistegina lessonit, d’Orb., 
and Cycloclypeus cf. communis, Martin. 
. Heterostegina depressa, d’Orbigny sp. Vertical section. 
x 26. 
. Lepidocyclina Verbeeki, var. papuaensis, nov. Form A. 
Vertical section. x17. 
. Heterostegina margaritata, Schlumberger. Vertical sec- 
tion, << 19, 
