592 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 14 



PLATE 62 



Fig. 1. Costazia robertsoniae Canu and Bassler, zooecia and ovicell ; 

 note especially tbe median distal avicularium on infertile 

 zooecia. 



Fig. 2. The same, young infertile zooecium, showing aperture and 

 origin of avicularian chambers. 



Fig. 3. Costazia costazi (Audouin), zooecia and ovicell, only paired 

 avicularia are present. 



Fig. 4. The same, young zooecium. 



Fig. 5. Sc/iizmopora anatina (Canu and Bassler), young zooecium, 

 with three types of avicularia and developing chamber of 

 suboral avicularium. 



Fig. 6. The same, mandible of giant avicularium. 



Fig. 7. Sc/iizmopora margaritacea (Fourtales), zooecium and ovi- 

 cell. 



Fig. 8. The same, a portion of a branch, zooecium with tubercles 

 and the position of the undeveloped avicularian chamber. 



Fig. 9. The same, diagram of erect branch, much enlarged. 



Fig. 10. Holoporella brunnea (Hincks), zooecia, aperture with proxi- 

 mal notch, suboral avicularium with dentate rostrum and 

 giant avicularia with spade-shaped dark sclerite. 



Fig. 11. The same, very young marginal zooecium. 



Fig. 12. The same, ovicell. 



Fig. 13. Lagenipora admiranda new species, young infertile zooecium 

 with frilled peristome and v-shaped sinus. 



Fig. 14. The same, ovicell. 



Fig. 15. The same, much enlarged to show the peculiar arch of the 

 peristome above the aperture. 



