1 PORCUPINE ’ DEEP-SEA DREDGING-EXPEDITIONS. 
755 
PLATE LXIX. 
Neolampas rostellata. 
Fig. 1. Oral aspect of the test, x 4. 
Fig. 2. Apical aspect of the test. X 4. 
Fig. 3. The test seen in profile. X 2. 
Fig. 4. The posterior aspect of the test, showing the deep anal inversion. X 2. 
Fig. 5. A portion of the test, showing the terminations of the ambulacra and the apical 
system. X 8. 
Fig. 6. The mouth, the floscelle, and the bourrelets. x 8. 
Figs. 7, 8. The larger spines. X 50. 
Fig. 9. One of the smaller spines, showing the terminal rosette of pointed tubercles. 
X 90. 
Figs. 10, 11, 12. Pedicellarise with their stalks. X 90. 
PLATE LXX. 
Pourtalesia Jeffreysi. 
Fig. 1. Lateral view of the test. X 2. 
Fig. 2. View of the truncated anterior extremity of the test, showing the position of the 
oral inversion. X 2. 
Fig. 3. Dorsal aspect of the posterior extremity of the test, showing the anal depression 
and the rostrum. X 2. 
Fig. 4. Portion of the test, showing the arrangement of the apical system, x 8. 
Fig. 5. An interambulacral plate, showing the distribution of the primary tubercles and 
of the granules. 
Fig. 6. One of the primary tubercles. X 20. 
Fig. 7. The base of one of the primary spines. X 40. 
Fig. 8. One of the small spatulate spines. X 150. 
Figs. 9, 9 a. One of the larger pedicellarise. X 90. 
Fig. 10. A small pedicellaria. x 100. 
Pourtalesia phyale. 
Fig. 11. Lateral view of the test. 
PLATE LXXI. 
Pourtalesia Jeffreysi. 
Fig. 1. Test denuded to show the arrangement of the plates. X 2. 
Fig. 2. Oblique view of the test. Natural size. 
