Plate 5 



Figs. 1-4. Cupuladria hexagonalis, new species (p. 79). 



1. Two zoaria, natural size. 



2. Portion of outer surface, X20. 



3. Inner side, X.20, showing the hexagonal compartments (base of the 



prisms) covered by adjacent granules. 



4. Tangential thin section, X85, through the inner face. 



D. 5147. Sulade Island, Sulu Archipelago. 



5. Electro, devinensis Robertson, 1921 (p. 81). 

 Zooecia, X20, rather well preserved. 



D. 5235. Nagubat Island, east coast of Mindanao. 

 G. Nitseheina tuberculata Bosc, 1802 (p. 80). 



Zoarial surface, X20, covered by the ectocyst. 



D. 5212. Panalangan Point, east of Masbate Island. 

 7-9. Pyripora unci fern, new species (p. 82). 



7. Fragment of a branch without ectocyst, X20. The middle zooeeium 

 is regenerated. 

 8, 0. Zoarial branches, X20, showing the great variation in the number 

 and arrangement of the areal clawlike spines. The ectocysl covers 

 the opesia. 



D. 5211. Anima Sola Island. 



10. Pyripora tenuicaiidata, new species (p. 83). 



Branches of the incrusting colony, X20. The ramifications occur 

 either at the caudal portion or the opesia] part of the zooecia. 

 D. 5217. Anima Sola Island. 



11. Pyrvlella pyrula Eincks, 1881 (p. 100). 

 Zooecia, X20, of a small incrusting zoarium. 



D. 5579. Sibutu Island, Darvel Pay, Ponied. 

 12. L3. Nellia oculata Busk, 1852 (p. 185). 



Two segments, <2(), showing variations. 



D. 5235. Nagubat Island, east coast of Mindanao. 



(572) 



