PLATE IX. 

 CAUDINA. 



Figures 1-5. Caudina obesacauda, sp. nov. 



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 planapertura, sp. nov. 



Figure 6. Adult. X 2. 



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

 Figiires 11-13. Closed cups. X 600. 



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