Plate VIII. 



Fig. i. Pourtalcsia Wandeli, sub-oral region of the test. 9/,. 



— 2. — apical system and adjoining parts of the test. The pores of the anterior 



paired ambulacra were rather indistinct and are perhaps not quite correctly placed. 



— 3. Pourtalcsia Wandeli, sub-oral region of the test, "/i- 



— 4. — Jeffreysi, — — - — — 9/,. 



r . 10/ 



— 6. - - - - «/i- 



— 7. — Wandeli, apical system and adjoining parts of the test. l ij t . 



— 8 — 11. — Jeffreysi, sub-oral region of the test. 9/,. In the figure 8 the small interambulacral 



plate 1. 1 is not quite certain. 



