Plate 42. 



Figs. 1-7. Crisia serrata Gahh a.nd Uorn, 1862. (p. 196.) 



1. Zoarial segments, natural size. 



2. Characteristic segment, X 12. 



3. Noncelluliferous side of a segment, X 25, with two ramal bases. 



4. Another segment, X 25, with two ramal bases. Some of the apertures are closed by lamellae. 



5. Another segment, X 25. 



6. A segment, X 25, showing the characteristic median carina and but a single ramal l>ase. 

 Pleistocene: Rustic Canyon, Santa Monica, California. 



7. Portion of an ovicelled segment, X 25. 

 Pleistocene: Santa Barbara, California. 



Fig. 8. (yisia, species. 



Several segments, X 12, still united by their corneous joints, which have not been destroyed by 

 fossilization. 



Pleistocene : Rustic Canyon, Santa Monica, California. 

 Figs. 9-17. Tubulipora fascindifera Hincks, 1884. (p. 197.) 



9-11. Three zoaria, X 12, illustrating variations in form. 



12. An example, X 12, showing a small lateral ovicell. 



13. Another ovicelled example, X 12, illustrating the large oeciostome at the beginning of a 

 fascicle. 



14. 15. Two unovicelled zoaria, X 12, with short fascicles. 



16. Several zoaria, natural size. 



17. Fragment of a zoarium, X 25. 

 Pleistocene: Santa Barbara, California. 



Figs. 18-23. Tubulipora tuba Gabb and Horn, 1862. (p. 198.) 



18. Zoarium, natural size. 



19. A young ovicelled specimen with short fascicles, X 12. 



20. An ovicelled example with a long capillary oeciostome, X 12. 



21. Surface of the same, X 25, illustrating the ovicell and oeciostome. 

 Pleistocene: Rustic Canyon, Santa Monica, California. 



22. An idmoneiform ovicelled specimen, X 12, with long fascicles. 



23. An irregular llabellate specimen, X 12. 

 Pleistocene: Santa Barbara, California. 

 28G 



