PLATE VIIl. 



TemnecbinuB maculatus, f. 1 - IS. 



1. Specimen from abactiiial pole, one half denuded, 12.7""". in diani. 



2. Same, without spines, showing actinal cuts. 



3. Abactinal system of same specimen, showing the large anal plate. 



4. Magnified portion of test of same specimen. 



5. Spine of same, magnified. 



6. Pedicellaria of same, magnified. 



7. Outline of specimen in profile. 



8. Specimen somewhat younger, from above, measuring 7.2°"- 



9. Same from actinal side. 



10. Abactinal system of same specimen, magnified. 



11. Magnified portion of test of same. 



12. Magnified spine of same. 



13. Auricle of same specimen. 



14. Magnified portion of test of fig. 15. 



16. Young specimen from actinal side, measuring 2.5°"' in diam. 



16. Young specimen, pentagonal, flat, with Cidaris-like spines, seen from abactinal side, 



measuring 0.8°"°- in diam. 



1 7. Test of same denuded from actinal side. 



18. Spine of specimen somewhat older. 



Bcbiiius microtuberculatus,/. 10-21. 



19. Y'oung specimen, measuring 5.1""- in diam., showing size of actinostome. 



20. Magnified part of test of same. 



21. Magnified part of test of younger specimen (2.1""- in diam.). 



Temuopleurus Reynaudi, /. 22 - 25. 



22. Part of test of specimen measuring 18.6"°' in diam. 



23. Anal system of specimen measuring 7.9""- in diam. 



24. Part of test of specimen of fig. 23. 



24'. Abactinal system of specimen of fig. 22. 



Temnopleurus Hardwickii, / S6. 



25. Part of test of specimen measuring 7.9"°. in diam. 



26. Part of test of specimen measuring ll»"- in diam. 



27. Abactinal system of same (H""- in diam.). 



28. Abactinal system of specimen measuring 7.9""- in diam. 



Hipponoe esculenta, /. 29. 



29. Arrangement of part of poriferous zone of young specimen. 



Temnechinus globosus, /. 30. 



30. Part of test of specimen measuring IS""- in diam. liom the Crag. 



