54 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOL. 93 



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Fig. 9. Schicoporclla arcana, new species 30 



The unilamellar zoarium showing the large perforation in front of 



the aperture. 

 Balcombian beds at Muddy Creek, Victoria. 



Fig. 10. Microporella cailleti, new species 23 



The incrusting zoarium with several ovicelled zooecia. 

 Balcombian beds at Muddy Creek, Victoria. 



Fig. II. fcncstrulina praetexta, new species 34 



Surface of the bilamellar zoarium showing ascopore much re- 

 moved from the aperture. 

 Janjukian beds at Flinders, Victoria. 



