ILLUSTRATIONS 



Plate I 



Fossils from raised coral reefs (Recent and 

 natural size. (Photographs by Martin.) 



Pleistocene) . About one-half 



Fig. 1. 



Conus flavidus Lam. 





Fig 



. 9. 



Crista pectinata Linn. 



Figs. 2 



and 3. Voluta sp. 







10. 



Cerithium nodulosum Brug. 



Fig. 4. 



Potamides sp. 







11. 



Circe pectinata Linn. 



5. 



Spondylus sp. 







12. 



Cerithium jenkinsi K. Mart, 



6. 



Telescopium telesco 



pium 







(?) 





Linn. 







13. 



Area cecillei Phil. (?) 



7. 



Natica sp. 







14. 



Strombus canarium Linn. 



8. 



Trochus fenestratus Gmel. 













Plate II 







Fossils from the Upper limestone and the Cudiapi sandstone of the Ma- 

 lumbang series (Pliocene and upper or middle Miocene). About one-half 

 natural size. (Photographs by Martin.) 



Cyclolites sp. 

 Indet. 

 Turbo sp. 

 Cardium sp. 

 Conus sp. 



Fig. 1. Pecten senatorius Gmel. Fig. 6. 



2. Cytherea sp. 7. 



3. Lagenum multiforme K. 8. 



Mart. var. tayabum var. 9. 



nov. 10. 



4. Spondylus imperialis Chem. 



5. Schizaster subrhomboidalis 



Herkl. 



Plate III 



Fossils from the Lower limestone of the Malumbang series (upper or 

 middle Miocene). About one-half natural size. (Photographs by Martin.) 



Fig. 



1. 



Indet. 



Fig. 



4. 



Schizaster subrhomboidalis 





2. 



Cypraea sp. 







Herkl. 







3. 



Portion of internal cast of 

 Cerithium sp. 





5. 

 6. 



Pyrula gigas K. Mart. 

 Macoma sp. 









Plate IV 









Fossils from the Canguinsa sandstone 



(middle or lower Miocene) 



and 



from the Vigo shale (lower Miocene 



or Oligocene) . About one-half 



nat- 



ural 



size. (Photographs by Martin.) 











Fig. 



1. 



Conus loroisii Kien. 



Fig. 



7. 



Indet. 







2. 



Conus ornatissimus K. Mart. 





8. 



Hindsia sp. 







3. 



Pyrula bucephala Lam. (?) 





9. 



Area sp. 







4. 



Tapes rimosa Phil. 





10. 



Cyclolites sp. 







5. 



Corbula socialis K. Mart. 





11. 



Strombus triangulatus 



K. 





6. 



Conus djarianensis K. Mart. 







Mart. (?) 









Plate V 









Globigerina (Rhizopoda) from the Vigo shale; a possible source of pe- 

 troleum. (Drawings by Moskaira.) 



Figs. 1 to 3. Characteristic shapes assumed. Magnification, 20 to 25 dia- 

 meters. 

 4 and 5. Details of the structure of the shell. Magnification fig. 4, 

 20 to 25 diameters; fig. 5, 140 diameters. 



375 



