PLATE VII. 
Fig. 1 
Fig. 2, 
Fig. 3. 
Fig. 4. 
Fig. 5. 
Fig. 6. 
Fig. 7. 
Fig. 8. 
Fig. 9. 
Stenopora crinita, Lonsdale 
Vertical peripheral section to .show the elongated tear-shaped moniliform constric- 
tions and tabula*, x. IG. 
Stenopora crinita, Lonsdale? ... 
Axial horizontal section, with tliickenod and unthickened primordial walls. 
Acanthopores highly developed, with the concentric structure of their walls 
apparent, and each with a central clear spot, x. 15. 
Stenopora ovata, Lonsdale 
Horizontal section, with thickened and unthickened walls. In the former are 
visible the primordial wall, structure of the secondary thickening, and young 
corallitos at certain angles of the calices, x. 20. 
Tangential section with the whole of the walls thickened ; the acanthopores highly 
and irregularly developed, and the centre of each occupied by a dark spot j 
corallites very irregularly oval, x. 20. 
Longitudinal section of peripheral region to show the peculiarly crowded and 
exceedingly moniliform condition of the constrictions and their concentrically 
fibrous structure, x. 25. 
Longitudinal peripheral section in which the sclerenchyma has been dissolved from 
the monilfe, leaving them as hollow shells, x. 15. . 
F rondescent Stenopora 
Tangential section, showing enormously-thickened walls and copious development 
of acanthopores, x. 15. 
Stenopora Leichhardti, N. & E. ... 
Slightly oblique .section of the peripheral region to show the tube-like character of 
the acanthopores and the generally-thickened walls, x 20. 
Stenopora tasmaniensis, Lonsdale ... 
Vertical section partly axial, partly peripheral, showing inonilm, a tabulum, and 
the inner margin of the greatly -thickened peripliery, x. 1 0. 
Figs. 1 and 3 from Singleton. 
2, 4-7 „ Tasmania. 
S „ Bowen Biver Coal-field, Queensland. 
9 ,, Jerringong. 
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