Ann. Natal Mus. Vol. IV. 



PI. XI 



Lytocarpus filamentosus i/.niii.). Figs. 1-3, x 60. 

 Thuiaria tubuliformis \M.-Tui-Ji.). Figs. 4, 5, x 40. 

 Sertularia operculata. Linn. Figs. 6-8, x 40. 



Photo. Conrad Akerman. 



Adlard & Son & West Newman. Ltd. 



