NO. 9 TERTIARY BRVOZOA — CANU AND BASSLER 53 



PAGE 



Fig. II. Stichoporina (?) parvicapitata, new species 45 



Zooecial surface of the unilamellar zoarium. 



Balcombian beds at Muddy Creek, Victoria. 

 Fig. 12. Trigonopora (Metrarabdofos) vennicularis Maplestone, 1902. 



Surface of a narrow bilamellar zoarium received from Mr. Maple- 

 stone as Trigonopora vennicularis. The endozooecial ovicell, 

 form of aperture and pleurocystal frontal with lateral areolae 

 show this to be a true Metrarabdofos. 



Janjukian beds, Cape Otway, Victoria. 

 Fig. 13. Hippomcnella magna, new species 35 



Fragment of the unilamellar zoarium illustrating the large zooecia, 

 the arrangement of the areolar pores and form of aperture. At 

 the middle there is a monstrous zooecium. 



Janjukian beds (Torquay bore no. i, deptli of 160 feet) 15 miles 

 south of Geelong, Victoria. 



Plate 9 

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



PAGE 



Fig. I. Bathosella bulbosa, new species 31 



Surface of the bilamellar zoarium with small elliptical avicularia 



and some zooecia closed by a calcareous operculum. 

 Janjukian, Aire Coastal beds, Victoria. 



Fig. 2. Bathosella laticclla, new species 31 



The bilamellar zoarium composed of very wide zooecia with 



several rounded areolar pores on each side. 

 Janjukian, Aire Coastal beds, Victoria. 



Fig. 3. Exochella grandis, new species 32 



Surface of the unilamellar zoarium with some ovicelled zooecia. 



One cell has a calcified operculum. 

 Balcombian beds at Muddy Creek, Victoria. 



Fig. 4. Schizoporella tcnuilamcllosa, new species 29 



Surface of the very thin bilamellar zoarium with a small orbicular 



and a transverse avicularium before each aperture. 

 Balcombian beds at Muddy Creek, Victoria. 



Fig. 5. Schiaoporella macgillivrayi, new species 29 



Fragment of a hollow cylindrical zoarium exhibiting the disar- 

 ranged zooecia. 

 Balcombian beds at Muddy Creek, Victoria. 



Fig. 6. Escharoides erect a, new species t,^ 



The free erect, cylindrical zoarium composed of large elongated 



zooecia. 

 Janjukian beds, Gellibrand, Victoria. 

 Figs. 7, 8. Didymosclla clypeaia, new species 32 



7. Cellular side of the free, unilamellar zoarium. The frontal 

 shield, with its two foramina, is large and smooth. 



8. Dorsal side of the same specimen. 

 Balcombian beds at Muddy Creek, Victoria. 



