PLATE 138. 



N.B. — The signification of the characters is the same in all the figures (compare p. 715 



a. Northern polar spines. 



b. Northern tropical spines. 



c. Equatorial spines. 



d. Southern tropical spines. 



e. Southern polar spines. 



DORATASP1DA. 



Fig. 1. Coscinaspis peripora (vel Dorataspis peripora), n. sp., 



Fig. 2. Dorataspis fusigera, n. sp., . 



Fig. 3. Dorataspis micropora, n. sp., 



Fig. 4. Dorataspis typica, n. sp., 



Fig. 4a. Polar view of the central union of the twenty spines, 



Fig. 5. Cenaspis inermis, n. sp., . 



Fig. 6. Ceriaspis favosa, n. sp., 



Fig. 7. Hystrichaspis fruticata, n. sp., 



Fig. 8. Hystrichapsis pectinata, n. sp., 



Fig. 9. Hystrichaspis furcata, n. sp., 



Fig. 10. Hystrichaspis dorsata, n. sp., 



Fig. 11. Hystrichaspis cristata (vel Siphonaspis cristata, n. sp.), 





Diarn. 



Page 



X 



300 



826 



X 



400 



813 



X 



300 



815 



X 



300 



815 



X 



300 



815 



X 



400 



821 



X 



400 



821 



X 



300 



825 



X 



300 



822 



X 



400 



822 



X 



300 



823 



X 



400 



823 



