Plate 34. 
Figs. 1-3. Callopora circumclathrata Hincks, 1881. (p. 43.) 
1. Well-preserved specimen, X 20, with ovicells and avicularia. 
2. Zoarial surface, X 20, shoving the zooecia, avicularia areolar spaces, and the dietellae. 
3. An ovicelled specimen, X 20, with large avicularia. 
Pleistocene: Long Wharf Canyon, Santa Monica, California. 
Fig. 4. Rhamphonotus multispinatus, new species, (p. 47.) 
The incrusting type specimen, X 20, showing the two sizes of spines, a pair of large ones which 
constrict the opesium and numerous smaller ones. 
Pleistocene: Santa Barbara, California. 
Figs. 5-7. Cupularia robertsoniae, new species, (p. 82.) 
5. The disk-shaped zoaria, natural size. 
6. External inferior face, X 20. 
7. Internal superior face, X 20. 
Pleistocene: Long Wharf Canyon, Santa Monica, California. 
Fig. 8-10. Chaperia galeata Busk, 1853. (p. 52.) 
8. A Pleistocene example of this widespread recent and fossil species, X 20. 
Pleistocene: Santa Barbara, California. 
9. Ovicelled zooecia showing the characteristic rectilinear distal border. 
10. Another fragment, X 20, with one complete ovicell and the spines and avicularia well shown. 
Pleistocene: Rustic Canyon, Santa Monica, California. 
Figs. 11-14. Cellaria mandibulata Hincks, 1882. (p. 86.) 
11. A segment, X 20, showing a large avicularian zooecium. 
12. Another fragment, X 20, with an avicularian zooecium. The round orifice of the inferior 
zooecium is the passage for the corneous joint bearing another segment. 
13. An ordinary segment, X 20. 
14. Several fragmentary segments, natural size. 
Pleistocene: Los Angeles, California. 
Figs. 15-18. Cellaria fmuri/era, new species, (p. 85.) 
15. A worn segment, X 20. The opening of the ovicell is very narrow. 
16. Segment, X 20, bearing zooecium with round orifice through which the chitinous joint of 
another segment passed. 
17. Segment, X 20, with rhomboidal zooecia and bearing two avicularia. The orifice of the 
ovicell is a narrow elongated fissure. 
18. Several fragments, natural size. 
Pleistocene: Rustic Canyon, Santa Monica, California. 
Figs. 19, 20. Cellaria diffusa Robertson, 1905. (p. 86.) 
A segment natural size and enlarged, X 20, illustrating the characters of this beautiful species. 
The orifice of the ovicell has the characteristic proximal tongue. 
Pleistocene: Rustic Canyon, Santa Monica, California. 
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