PLATE XXXVIII. 



Figure 1. Macropneustes speciosus, Duncan and Sladen (page 229). Abactinal view of the test, 

 natural size. 



2. Longitudinal profile of the test, natural size. 



3. Apical disk, magnified. 



4. Portion of the odd anterior ambulacrum, magnified. 

 5> Portion of the antero-lateral ambulacrum, magnified. 



Macropneustes rotundus, Duncan and Sladen (page 232) . Abactinal view of the test, 

 natural size. 



7. Actinal view of the test, natural size. 



8. EusPATANGTJS AVELLANA, d'Archiac and Haime (page 235). Abactinal view of the test, 



natural size. 



9. Actinal' view of the test, natural size. 



10. Transverse profile of the test, seen from behind, natural size. 



11. Longitudinal profile of the test, natural size. 



12. The peristome and surrounding portions of the test, magnified. 



13. The apical disk, the odd anterior ambulacrum, and the right antero-lateral petal, 



magnified. 



14. Ettspatangus cordiformis, Duncan and Sladen (page 238). Abactinal view of the test, 



natural size. 



15. Etjspatangus rostratus, d'Archiac (page 240). Abactinal view of the test, natural size. 



16. Actinal view of the test, natural size. 



17. Longitudinal profile of the test, natural size. 



18. Portion of a lateral ambulacrum, to show ornamentation, magnified. 



19. Brissopatagus Sindensis, Duncan and Sladen (page 226), Abactinal view of the test, 



natural size. 



20. Actinal view of the test, natural size. 



21. Longitudinal profile of the test, natural size. 



