Plate VIII. 



Fig. i. Pourtalesia 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. Pourtalesia Wandeli, sub-oral region of the test, "/i- 



- 4- Jeffreysi, */,. 



5- '% - 

 - 6. - - - "A- 



7. Wandeli, apical system and adjoining parts of the test '3/j. 



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

 plate 1. 1 is not quite certain. 



