588 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 14 



PLATE 60 



Fig. 1. Lagenipora purictulata (Gabb and Horn), portion of erect 

 branch, reduced J4. 



Fig. 2. The same, showing tubular peristome and ovicells. 



Fig. 3. Lagenipora socialis Hincks, young zooecia. 



Fig. 4. The same, fully developed zooecia with ovicells. 



Fig. 5. Lagenipora hippocrepis (Busk), young zooecia with ovicell. 



Fig. 6. The same, diagram of side view. 



Fig. 7. Trematooecia hexagonalis (Canu and Bassler), zooecium 

 with ovicell and spinous tubercles. 



Fig. 8. Trematooecia porosa (Canu and Bassler), zooecia showing 

 form of aperture and minute frontal avicularium. 



Fig. 9. The same, young zooecium with partially developed ovicell 

 and secondary cover; note also the minute suboral avicu- 

 larium. 



