Plate XIII. 



MOLPADIID^. 



Figures 1-4. Himasthlephora gJauca, sp. nov. 



Figure 1. Adult. X 5. 



2. Radial and interradial pieces of calcareoiis ring. X 10- 



3. Transverse section of body-wall through base of a dorsal papilla, showing connec- 



tion between lumen of papilla (a) and ampulla (fe). 



4. Transverse section of body-wall, somewhat posterior to preceding, showing ampulla 



{a), radial water-vessel (6), and longitudinal muscle (c). 



Figures 5-13. Cerapledana tr achy derma, sp. nov. 



Figure 5. Adult. Natural size. 



G. Oral disc, showing tentacles. X 4. 



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

 Figures 8-13. Calcareous deposits from skin. X "^0. 

 Figure 13. Spire, seen from side. X "O. 



Figures 14r-22. Molpadia amorpha, sp. nov. 



Figure 14. Adult. Natural size. 



Figures 15 and 16. Normal tables. X 600. 



Figures 17-21. Other calcareous particles from skin. X 600. 



Figure 22. Phosphatic deposit. X 156. 



226 



