PLATE II. 



Figure 1. Echinanthtts pumilus, Duncan and Sladen (page 13). Actinal aspect of the test, 

 natural size. 



2. Abactinal aspect of the test, natural size. 



3. Profile view of the test, showing the posterior extremity, natural size. 



4. Outline of the transverse profile of the test. 



5. Apical system, magnified. 



6. Apical system from another specimen, considerably weathered, magnified. 



7. Peristome and floscelle of the same specimen as Figs. 1-5, magnified. 



8. Tuberculation of the abactinal surface, magnified. 



9. Tuberculation of the actinal surface, just below the ambitus, magnified. 



