Plate 15. 

 1-13. Podophora pedifera Agass. 



1. Lantern seen from above. 



2. The same as 1, seen in profile. 



3. One of the pyramids seen from the exterior. 



4. The same as 3, seen from the interior. 

 6. The same, seen in profile. 



6. The same, seen from above. 



7. a. Epiphysis of pyramid, seen from the interior, b. pyramid, in profile, seen from the 



interior. 



8. Detail of the corrugation on the edge of the inside wall of a pyramid. 



9. a. Epiphysis of pyramid, seen from the exterior, b. pyramid in profile, seen from the 



interior. 



10. Upper end of a pyramid, exterior view showing a foramen. 



11. a. Grooved tooth, b. dorsal view, c. seen in profile. 



12. The brace, a. seen from above, b. same in profile, c. from below, d. endwise. 



13. Compass, a. seen from above, b. the same in profile. 



All the figures from a specimen measuring 82 mm. in diameter, including the spines. 

 Outer reef, Fakarava, Paumotus, " Albatross " Ex., 1899-1900. 



