PLATE XXXIV. 



Figure 1. Hemiaster apicalis, Duncan and Sladen (page 193). Abactinal view of the test, natural 

 size. 



2. Longitudinal profile of the test, natural size. 



3. Front view of the test, natural size. 



4. Apical disk, magnified. 



5. Portion of the odd anterior ambulacrum, magnified. 



6. Portion of one of the antero-lateral petals, magnified. 



7. Ornamentation of the test near (above) the ambitus in one of the anterior interradia, 



magnified. 



8. Hemiastee nobilis, Duncan and Sladen (page 196). Abactinal view of the test, natural 



size. 



9. Longitudinal profile of the test, natural size. 



10. Portion of the odd anterior ambulacrum, magnified. 



11. Portion of one of the antero-lateral petals, magnified. 



12. Hemiaster carinatus, Duncan and Sladen (page 198). Abactinal view of the test, 



natural size. 



13. Portion of the odd anterior ambulacrum, magnified. 



14. Portion of one of the antero-lateral petals, magnified. 



15. ScHizASTER siMULANs, Duucau and Sladen (page 223). Abactinal view of the test, 



natural size. 



16. Longitudinal profile of the test, natural size. 



17. Gen. et sp. indet. (page 241). Abactinal view of the test, natural size. 



