554 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 14 



PLATE 43 



Fig. 1. Hippomonavella longirostrata (Hincks), zooecia, paired 



avicularia and ovicell. 

 Fig. 2. The same, details of frontal, aperture and avicularium. 

 Fig. 3. The same, operculum. 

 Fig. 4. Hippomonavella parvicapitata (Canu and Bassler), zooecia 



in full calcification and ovicell. 

 Fig. 5. The same, aperture, spines and avicularia. 

 Fig. 6. The same, operculum. 

 Fig. 7. Hippomenella flava new species, zooecium and ovicell in full 



calcification. 

 Fig. 8. The same, aperture and spines, the small cardelles are ob- 

 scured by the edge of the frontal. 

 Fig. 9. The same, operculum. 

 Fig. 10. Hippoporina tuberculata new species, showing aperture and 



characteristic position of tubercles. 

 Fig. 11. Gemelliporella inflata new species, zooecium, aperture and 



avicularium. 

 Fig. 12. Escharoides praestans (Hincks), zooecia in full development 



with spatulate avicularia and suboral denticle. 

 Fig. 13. Trypematella umbonula new species, zooecium with ovicell 



and avicularia. 

 Fig. 14. The same, details of aperture. 



