NO. 9 TERTIARY BRYOZOA CANU AND BASSLER 5I 



PAGE 



Fig. 10. Chiastosclla parviporosa, new species 27 



The unilamellar zoarium composed of large zooecia with the 

 frontal ornamented by relatively small pores. 

 Janjukian beds at Flinders, Victoria. 



Fig. II. Schizoporella clypeata, new species 30 



The unilamellar zoarium showing the disarranged apertures and 



the zooecial shield surrounded by areolar pores. 

 Janjukian beds at Anticline Creek, Dartmoor, Victoria. 



Plate 7 

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



PAGE 



Fig. I. Hipponicnella rarirosfrata, new species 35 



Fragment of a unilamellar ovicelled zoarium showing the radially 



ornamented ovicell with triangular area and few avicularia. 

 Balcombian beds at Muddy Creek, Victoria. 



Fig. 2. Hipponienella parviporosa, new species 34 



Unilamellar zoarial fragment attached to a fragment of bryozoan, 

 showing the irregularity of position of the avicularia, the smooth 

 frontal and the small areolar pores. 

 Balcombian beds at Muddy Creek, Victoria. 



Fig. 3. Siiiittina perforata, new species 37 



Fragment of the unilamellar zoarium showing the place of the 



large, orbicular, median avicularium. 

 Balcombian beds at Muddy Creek, Victoria. 



Fig. 4. Srnittina (?) parviovicellosa, new species 38 



Portion of a bilamellar ovicelled zoarium exhibiting the very small 



ovicells and much elongated zooecia. 

 Janjukian beds at Orbost, Gippsland, Victoria. 



Fig. S. Hippomonavella acutirostris, new species ^7 



Zoarium incomplete, incrusting, showing the formation of new 



cells and occurrence of the median avicularium. 

 Balcombian beds at Muddy Creek, Victoria. 



Fig. 6. Mncronella elongata, new species 38 



Example showing the very long zooecia with smooth frontal, one 



row of small areolar pores and small mucron. 

 Janjukian beds at Anticline Creek, Dartmoor, Victoria. 



Fig. 7. Porclla tuberosa, new species 40 



Surface of the bilamellar zoarium showing the frontal tuberosities 



and one ovicelled zooecium. 

 Balcombian beds at Muddy Creek, Victoria. 



Fig. 8. Smittinella magniporosa, new species 40 



Bilamellar ovicelled zoarium, showing the large frontal pores. 

 Balcombian beds at Muddy Creek, Victoria. 



Fig. 9. Porella cylindrorostris, new species 41 



Portion of a bilamellar ovicelled frond showing the cylindrical 



avicularium covered by an expansion of the peristome. 

 Janjukian beds at Bird Rock, Torquay, Victoria. 



