REPORT ON THE ECHINOIDEA. 295 



PLATE XXII. 



Pourtalesia phiale, Wy. Thorn, (figs. 1-5), p. 138. 

 Fig. 1. Seen from the actiual side (f). 

 „ 2. Profile view of same. 

 „ 3. Seen from the abactinal side. 

 ,, 4. Seen facing the actinal extremity. 

 „ 5. Seen facing the anal extremity. 



Pourtalesia hisjnda, A. Ag. (figs. 6-19), p. 136. 

 „ 6. Profile view of Pourtalesia hispida (i^). 

 „ 7. Same, seen from the abactinal side. 

 „ 8. Same, seen from the actinal side. 

 „ 9. Enlarged profile view of anal extremity. 

 „ 10. Interior profile view of test, to show course of the anterior part of the alimentary 



canal and the genital organs. 

 „ 11. Interior profile view, showing the position of the posterior portion of the 



alimentary canal ; natural size. 

 ,, 12. End view facing the anal extremity (^^). 

 „ 13. End view of same, facing the actinal extremity. 

 „ 14. Interior view of anal extremity, seen from above. 

 „ 1 5. Interior view of actinal groove, seen in profile. 

 ,, 16. Exterior view of actinal groove, seen from below. 

 „ 17. Interior view of actinal groove, seen from below. 

 ,, 18. Interior view of abactinal system, showing position of ovaries. 

 „ 19. Interior view of abactinal system, showing the bivium and trivium. 



PLATE XXII 



Pourtalesia phiale, Wy. Thom. (figs. 1, 2), p. 138. 

 „ 1. Seen in profile (denuded), enlarged (f). 

 „ 2. Seen from the actinal side (denuded), enlarged. 



Pourtalesia rosea, A. Ag. (figs. 3-6), p. 139. 



,, 3. Anal snout, seen in profile (f), actinal surface uppermost. 



„ 4. Anal snout, seen from the actinal side. 



„ 5. Same, seen from the abactinal side. 



„ 6. Interior view of abactinal svstem. 



