viii, a, 4 Smith: Fossil Invertebrate Fauna 299 



Plate X 



Fig. 1. Pecten (Chlamys) sp. 



2. A coralline form, undetermined. 



3. Spondylus ducalis Chem. (?) 



4. Spondylus ducalis Chem. (?), lower value. 



5. Alectryonia folium Linn. 



6. Plicatula imbricata Menke. 



7. Ostrea sp. 



Plate XI 



Fig. 1. Orbitoidal limestone, Cebu. 



2. Lithothamnium ramosissimum Reuss. 



Plate XII 



Fig. 1. Section of radiolarian chert from near Nagpartian, Ilocos Norte, 

 Luzon. 

 2. Foraminiferal limestone, Batan Island. 



Plate XIII 



Fig. 1. Operculina costata d'Orbigny. 



2. Orbitolites complanata Lam. 

 Figs. 3 and 4. Orbitolites, sections, much enlarged. 

 Fig. 5. Orbitoidal and coralline limestone. 



Figs. 6 and 7. Lepidocyclina insulse-natalis Jones et Chap., central part. 

 Fig. 8. Lepidocyclina formosa Schlm. (?) 



9. Lepidocyclina formosa Schlm. (?), detail of the surface, much 

 enlarged. 

 10. Flabellum sp. 

 Figs. 11 and 12. Lepidocyclina formosa Schlm. (?) 



13 to 16. Lepidocyclina insulse-natalis Jones et Chap. 

 17 and 18. Portions of radiolarian tests. 



Plate XIV 

 Pyrula (Melongena) sp. indet. 



Plate XV 

 Figs. 1 to 3. Voluta sp. indet. 



Plate XVI 

 Tridacna gigas Lamarck. 



Plate XVII 



Fig. 1. Montlivaultia bulacana sp. nov. 



2. Chenendopora (?) major sp. nov. 



3. Montlivaultia bulacana sp. nov. 



4. Prionastraea (?) vasta Klz. 



5. Cycloseris decipiens K. Mart. 



6. Montlivaultia robusta sp. nov. 



