Plat i :;i 

 FlG. 1. Gemellipora perishnnnrin. new species p. 3M> . 



The incrusting zoarium, ■ 2<), illustrating the much-developed peristome 

 mikI the transverse frontal avicularia. 

 I) 5151. Sirun Island. 



2. Schizomavella simplex, new specie- (p. 305). 



Encrusting ovicelled specimen, 20, incrusting a Nullipore. 



I). 5219. Mompog Island. 



3, 1. Schizomavella cornula new species (p. 304 



3. The type specimen, ■ 20, growing over a sponge and preserving some 



pel'C II lit. 



1. Microstructure of the tremocyst, -'85. 

 I). 51 11. Jolo Light, Jolo. 

 5, 6. Gemelliporella areolata, new species (p. 309). 



5. Specimen incrusting a shell, ■ 20. The zooecia have interareolar 

 costules and very large oral avicularia. 

 I). 5579. Darvel Bay, Borneo. 

 ti. Aunt her example, 20, in which the areolar pores are hidden by the 

 pleurocysl . 



1 ). 521 7. Aniniit Sola Island. 



7. Gemellipora biavicularia, new species (p. 312 . 



The type specimen, 20, an incrusting zoarium showing the charac- 

 teristic large oral avicularium and the small median transverse one. 

 D. 5179. Etomblon Light, Romblon. 



8. Gemellipora punctata, new species p. 311). 



Fragment of the incrusting zoarium. 20. showing the large tremopores 

 and the large lateral and small transverse avicularium. 

 I). 51 15. Jolo Light, Jolo. 

 9, 10. Buffonellaria loculifera, new species (p. :;os . 



9. Portion of the type zoarium, 20, incrusting an orbitoid foraminifer. 



Two semicircular ridges on the frontal divide it into two areas. The 

 ovicell is Lodged in the larger area and the aperture in the mailer. 

 10. Another portion of the same zoarium, 20, showing the form of the 

 young marginal zo< lecia 



I). ")l 79. Romblon Light . Romblon. 



601 



