Plate 40. 



Fics. 1^. Tvhirelldfiii punctulata Gabl) and Horn, 1802. (p. 170.) 



1. Zoarial fragments, natural size. 



2. \ ramilied segment, X 20. 



3. .Vnother segment, X 20, illustrating the zooecial surface. 



4. Longitudinal section, X 20. 

 Pleistocene: Santa Barbara. California. 



FriiS. 5, (). Tuhucellaria punclulidii . var. minor, new variety, (p. 170.) 



,V fragment natural size, and surface (if the same, X 20. The smaller size of_Jthe "zooecia and 

 tremopores is e\'ident. 



Pleistocene: Santa Barbara, California. 

 Fig. 7. Laqeniporti spinulom Hincks, 1S,S4. (p. 171,) 



An example. X 20, much changed liy I'ossilization. 



Pleistocene: Dead Mans Island, off San Pedro, California. 

 Figs. 8, 9. Holoporella umbnnata, new species, (p. 178.) 



8. Zooecial surface, X 20, illustrating the areolar pores. 



9. Well-developed example -ivith interareolar costules radiating from the umbo. Several ovi- 

 celled zooecia are present. 



Pleistocene: Santa Barbara, California. 

 FiG.s. 10, 11. Schismopora abruptn, new species, (p. ISO.) 



10. Surface of the incrusting zoarium, X 20, \vith some of the usual small avicularia transformed 

 into very long ones. 



11. Another surface, X 20. The transverse, smooth, deeply embed<led ovicell and the numerous 

 small triangular avicularia are quite visible. 



Pleistocene: Santa Barbara, California. 

 Figs. 12-15. Schismopora lanccolata, new species, (p. 181.) 



12. The small lamellar zoarial masses, natural size. 



13. Surface, X 20. illustrating the triangular sinus of the apertura and the lanceolate interzooecial 

 avicularia, 



14. Ovicelled zooecia, X 20. The characteristic avicularia are also present. 



15. Portion of the zooecial .surface, X 20, showing the incomplete zooecia. 

 Pleistocene: Santa Monica, California. 



284 



