Plate IX. 

 Caudina. 



Figures 1-5. Caudina ohesacauda, sp. no 



Figure 1. Adult. Natural size. 



2. Eadial and interradial pieces of calcareous ring. X 5. 



3. Perforated plate from anterior part of body. X 600. 



4. Normal closed cups. X 600. 



5. Imperfect cup. X 600. 



Figures 6-8. Caudina planaperiura, sp. nov. 



Figure 6. Adult. X 2. 



7. Eadial and interradial pieces of calcareous ring. X 5. 



8. Perforated plates from skin. X 156. 



Figures 9-13. Caudina contractacauda, sp. nov. 



Figure 9. Adult. X 2. 



10. Eadial and interradial pieces of calcareous ring. X 5- 

 Figures 11-13. Closed cups. X 600. 



218 



