PLATE IX 



Fig. I. Mirastrella biradialis, 4 specimens, St. 160, x 5. 

 Fig. 2. Anteliaster australis, abactinal view of type, x 2-3. 

 Fig. 3. Anteliaster australis, 3.cx.\.na\. \i&fi oi ty^t, x 4. 



