PLATE XXXVI. 



Figure 1. Metalia scutifoemis, d'Archiac, sp. (page 309). Abactinal view o£ the test, natural 

 size. 

 3. Actinal view of the test, natural size. 



3. Longitudinal profile of the test, natural size. 



4. The apical disk, magnified. 



5. A portion of the ahactinal surface, to show the ahtero-lateral petal and the fasciole, mag- 



nified. 



6. Metalia sctitiformis (?) var. kotunda, Duncan and Sladen (page 311). Abactinal view 



of the test, natural size. 



7. Longitudinal profile of the test, natural size. 



8. Metalia depressa, Duncan and. Sladen (page 211). Ahactinal view of the test, natural 



size. 



9. Longitudinal profile of the test, natural size. 



10. A portion of the abactinal surface, to show the apical disk, the ambulacral petals, and the 



fasciole, magnified. 



11. Metalia agariciformis, Duncan and Sladen (page 213). Abactinal view of the test, 



natural size. 



12. Actinal view of the test, natural size. 



13. Longitudinal profile of the test, natural size. 



14. A portion of the abactinal surface, to show the apical disk and the ambulacral petals, 



magnified. 



15. Metalia, sp. (page 215). Abactinal view of the test, natural size. 



16. Longitudinal profile of the test, natural size. 



17. Metalia, sp. (page 316). Abactinal view of the specimen, natural size. 



18. Peripneustes, sp. (page 334) . Abactinal view of the test, natural size. 



19. Longitudinal profile of the test, natural size. 



30. ScHiZASTER, sp. (page 334). Abactinal view of the test, natural size. 



31. Longitudinal profile of the test, natural size. 



22. EcHiNOLAMPAs, sp. (page 176). Abactinal view of the teat, natural size. 



23. Longitudinal profile of the test, natural size. 



