PLATE XXTII. 



Figure 1. Couoclypeus alveolatuSj Duncan and Sladen (page 124). Abaetinal view of the test, 

 natural size. 



2. Actinal view of the test, natural size. 



3. Longitudinal profile of the test, natural size. 



4. A bourrelet and rudimentary phyllode, magnified. 



5. Terminal extremity of an amhulacral petal, magnified. 



6. Apical disk, magnified. 



7. CoNocLYPEUs piNGuis, Duncau and Sladen (page 126). Abactinal view of the test, natural 



size. 



8. Actinal view of the test, natural size. 



9. Longitudinal profile of the test, natural size. 



10. Terminal extremity of an amhulacral petal, magnified. 



11. Apical disk, magnified. 



