REPORT ON THE ECHINOIDEA. 305 



Fig. 5. Same seen facing the anal extremity. 



„ 5'. Same as fig. 8, seen facing the anterior extremity. 



,, 6. Enlarged view of large suckers of odd anterior ambulacrum of fig. 8. 



,, 7. Anal system of fig. 8. 



„ 8. Smaller specimen than fig. 1, measuring 20 mm., seen from the abactinal side. 



,, 9. Same, seen from the actinal side. 



,, 10. Same, seen in profile. 



,, 11. Seen, facing the anal system, smaller than fig. 8. 



,, 12. Same, seen facing the actinal extremity. 



,, 13. Actinostome of fig. 9; magnified. 



PLATE XXXIIK 



Aceste hellidifera, Wy. Thorn, (figs. 1-7), p. 195. 



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



„ 2. Same, seen from the actinal side. 



,, 3. Same, seen in profile. 



„ 4. Same, seen from the posterior extremity. 



„ 5. Same, seen from the anterior extremity. 



„ 6. Enlarged view of actinostome of fig. 5. 



„ 7. Enlarged view of apical system and adjoining ambulacra! area. 



Aerope rostrata, Wy. Thom. (figs. 8-12), p. 192. 



8. Seen from the actinal side (^). 



9. Same, seen in profile. 



10. Enlarged view of apical system and of abactinal part of test. 



1 1 . Enlarged view of actinostome. 



12. Enlarged view of anal system. 



PLATE XXXIV. 



Calymne relicta, Wy. Thom. (figs. 1-13), p. 155. 



Specimen measuring 30 mm., copied in part from Thomson. 



Fig. 1. Test, seen from the actinal side. 

 „ 2. Test, seen from the abactinal side 

 „ 3. Test, seen in profile. 



„ 3 a. Cluster of paddle-shaped primary spines on the abactinal side of the edge of 

 the posterior part of test. 



(ZOOL. CHALL. EXP. — PART IX. — 1881.) I 39 



