554 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 14 



PLATE 43 



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

 avicularia and ovicell. 



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



Fig. 3. The same, operculum. 



Fig. 4. Hipp07nona<vella 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 nevy 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. 



