544 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL.14 



PLATE 38 



Fig. 1. /?r//irro/ioOTa fm/i (Audouin), zooecium and ovicell. 



Fig. 2. The same, details of aperture. 



Fig. 3. The same, operculum. 



Fig. 4. Arthropoma circinata (MacGillivray), zooecium and ovicell. 



Fig. 5. Sch'tzomavella aur'tculata (Hassall), zooecium, ovicell and 

 small elevated oval avicularium. 



Fig. 6. Schizoma'vella aiiriculata ochracea (Hincks), zooecium with 

 oval avicularium not elevated. 



Fig. 7. Schizoma'vella auriculata acuta new variety, with small 

 pointed avicularium and frontal granules. 



Fig. 8. The same, with large pointed avicularium. 



Fig. 9. The same, with long narrow avicularium, young and with- 

 out granulation. (Figs. 7, 8 and 9 all from the same colony.) 



F\g. 10. Schizoma'vella porifera (Smitt), zooecium, ovicell and large 

 median avicularium. 



Fig. 11. Stylopoma informata (Lonsdale), infertile zooecium. 



Fig. 12. The same, showing enormous ovicell in comparison with 

 zooecia. 



Fig. 13. Schizola<vella vulgaris (Moll), zooecium with ovicell and 

 lateral avicularium. 



