NO. 9 TERTIARY BRYOZOA CANU AND BASSLER 49 



PAGE 



Fig. 10. Ttibitrabecularia proditor, new species i8 



Portion of a complete ovicelled segment, showing trabeculae con- 

 solidating the peristomies, the ascopore, and the tubular per- 

 istomie and rounded peristomice. 

 Balcombian beds at Muddy Creek, Victoria. 



Fig. II. Porina Ussurifera, new species i6 



Portion of a narrow bilamellar zoarium with large frontal avicu- 



laria and slitlike ascopore. 

 Balcombian beds at Muddy Creek, Victoria. 



Plate 5 



(All illustrations on this plate are magnified, X 20) 



PAGE 



Fig. I. Petraliella tractijera, new species 19 



Zooecial surface of the unilamellar orbicular zoarium. 

 Balcombian beds at Muddy Creek, Victoria. 



Fig. 2. Petraliella vnlinr (Hincks, 1882) aviculifera, new variety 18 



Surface of the unilamellar zoarium showing the numerous small 

 avicularia and the salient avicularian umbo with its laterally 

 placed mandible. 

 Balcombian beds at Muddy Creek, Victoria. 



Fig. 3. Gephyrophora bilamellaria, new species 22 



Surface of the bilamellar zoarium. The zooecia are without 



spiramen. 

 Balcombian beds at Muddy Creek, Victoria. 



Fig. 4. Spiroporina tenuis, new species 22 



View of the thin cylindrical bifurcated zoarium composed of 



zooecia separated by a thin crenulated thread. 

 Janjukian beds at Corio Bay, Victoria. 



Fig. S. Gigantopora clongata, new species ^ 21 



The cylindrical zoarium exhibiting the elongate zooecia and the 



crescentric spiramen. 

 Janjukian beds at Gellibrand River, Victoria. 



Fig. 6. Schizoporella pustulosa. new species 30 



Portion of the bilamellar zoarium showing the formation of the 



frontal pustules. 

 Janjukian, Aire Coastal beds, Victoria. 



Fig. 7. Emballotheca gramdata, new species 28 



Fragment of the bilamellar zoarium exhibiting the rectangular 



zooecia with frontal covered by granules. 

 Kalimnan beds at Lakes Entrance, Victoria (bore no. i at depth 

 of no feet). 



Fig. 8. Emballotheca angnstata, new species 28 



Fragment of the bilamellar zoarium with very narrow, much 



elongated zooecia. 

 Janjukian beds at Orbost, Gippsland, Victoria. 



Fig. 9. Gigantopora mintitiporosa, new species 21 



Celluliferous side of the unilamellar zoarium with the zooecial 



frontal pierced by minute pores. 

 Janjukian beds at Flinders, Victoria. 



