64 STANLEY SMITH. 



Description of Plates II - V. 

 Plate II. 



Aphrophyllum hallense gen. et sp. no v. 

 All figures magnified two diameters. 



Fig. 1. Aphrophyllum hallense. Holotype. Transverse sections 

 of mature corallites. Parish of Hall, Bingara, N.S.W. 

 No. B 8. 



Fig. 2. The same. Paratype. Transverse section of immature 

 corallites, advanced neanic stage, No. B 10. 



Fig. 3. The same. Holotype. Longitudinal section, B 8. 



Figs. 4 and 5. The same. Holotype. Transverse section. Sections 

 showing early neanic stages, B 8. 



Plate III. 



Litliostrotion. 

 Specimens from New South Wales, all figures magnified 2 diameters. 



Fig. 1. Litliostrotion stanvellense Eth. fil., small variety approach- 

 ing L. arundineum. Transverse section, Parish of 

 Hall, Bingara, N.S.W. (B 5.) 



Fig. 2. Litliostrotion near L. arundineum, Eth. fil. Transverse 

 section, same locality. (B 6.) 



Fig. 3. Litliostrotion stanvellense. Longitudinal section. Same 



specimen as fig. 1. (B 5.) 



Fig. 4. Litliostrotion stanvellense. Transverse section. Same 



locality. (B 9.) 



Fig. 5. Litliostrotion stanvellense. Transverse section. Same 



locality. (B 1.) 



Fig. 6. Litliostrotion stanvellense. Longitudinal section. Same 



specimen as fig. 5. (B 1.) 



Plate IV. 



Lithostrotion. 

 Specimens from Queensland and Great Britain. 

 Fig. 1. Lithostrotion stanvellense Eth. fil. Topotype. Transverse 

 section, Lion Creek, Stan well near Rockhampton. 

 (Dll.) x2. 



