586 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 14 



PLATE 59 



Fig. 1. Phylactella aperta new species, zooecium, aperture and 



asymmetrical avicularium. 

 Fig. 2. The same, ovicell and symmetrical avicularium. 

 Fig. 3. Phylactella alulata new species, zooeciura with tessellated 



frontal, aperture and median avicularium. 

 Fig. 4. The same, ovicell. 

 Fig. 5. The same, diagram of aperture, connecting tube of avicu- 



larian chamber and tessellated frontal of young zooecium. 

 Fig. 6. Lagenipora spinulosa Hincks, zooecia, high peristome, avicu- 



laria and spines. 

 Fig. 7. Lagenipora mexicana new species, zooecia of erect branch. 

 Fig. 8. The same, aperture and ovicell. 

 Fig. 9. Lagenipora marginata Canu and Bassler, uniserial zooecia 



with distinct margin and position of ovicell. 

 Fig. 10. Lagenipora lacunosa Bassler, zooecia and ovicell. 



