Plate 42. 
Fios. 1-7. Crista serrata Gabb and Horn, 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 base. 
Pleistocene: Rustic Canyon, Santa Monica, California. 
7. Portion of an ovicelled segment, X 25. 
Pleistocene: Santa Barbara, California. 
Fig. 8. Crisia, 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 fasdculifera 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 flabellate specimen, X 12. 
Pleistocene: Santa Barbara, California. 
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