Plate 50 



Figs. 1-6. Triphyllozoon moniliferum MacGillivray, I860 (p. 374). 



1. Three fragments, natural size. 



2. Part of zoarium, )<20, bearing traces of an ovicell and a large frontal 



avicularium. 



3. Fragments, X20, showing the trace of two large antenniform spines. 



4. Fragment, X20, bearing fenestrular avicularia. 



5. Dorsal, X20, ornamented with long thin avicularia. 



6. Another dorsal, X20, with small poriform avicularia and showing the 



differences in the dimensions of the fenestrules. 

 D. 5478. Tacbuc Point, Leyte. 



7. Adeona porosa, new species (p. 376). 



The type specimen incrusting a Nullipore, X20. 

 D. 5141. Jolo Light, Jolo. 



8. Rhynchozoon angulatum Levinsen, 1909 (p. 374). 



Incrusting ovicelled specimen, X20. 

 D. 5147. Sulade Island. 

 9, 10. Bracebridgia fissifera, new species (p. 384). 



9. The free bilamellar fronds, natural size. 



10. The parietal dietellae are closed by the ectocyst, X20. 



D. 5147. Sulade Island. 

 11, 12. Lepraliella granulata, new species (p. 374). 



11. The incrusting zoarium, X20, showing marginal zooecia. 



12. Incrusting central zooecia, X20. 



D. 5151. Sirun Island. 



(617) 



