PLATE 133. 



N.B. The signification of the characters is the same in all the figures (compare p. 718). 



a. Northern polar spines. 



b. Northern tropical spines. 



c. Equatorial spines. 



d. Southern tropical spines. 

 . Southern polar spines. 



SPH^KOCAPSIDA, DORATASPIDA et PHRACTOPELTIDA. 



Diam. Page 



Fig. 1. Phractopelta dorataspis, n. sp., . x 300 852 



Fig. 2. Dorypelta tessaraspis, n. sp., . x 300 858 



Fig. 3. Stauropeltd cruciata, n. sp., . x 400 859 



Fig. 4. Pantopelta icosaspis, n. sp., . x 400 855 



Meridional section through the double shell. 



Fig. 5. Octopelta scutella, n. sp., . . x 400 856 



Proximal part of two meeting spines, isolated. 



Fig. 6. Orophaspis furcata, n. sp., . . x 400 818 



Fig. 7. Porocapsa murrayana, n. sp., . . x 300 800 



The central capsule is filled up by spherical vacuoles and enclosed hy the 

 porous shell ; in the centre radii of small granules (nuclei ?) occur. 



Fig. 8. Cannocapsa stethoscopium, n. sp., . . x 300 801 



The shell alone. 



Fig. 9. Astrocapsa coronata, n. sp., . . x 400 799 



Middle part of one spine with the four aspinal holes. 



Fig. 9a. Transverse section of a radial spine, with the four surrounding 



aspinal holes and the neighbouring part of the shell, . X 400 



Fig. 10. Astrocapsa stellata, n. sp., . x 400 799 



Part of one spine, with the aspinal holes and their four triangular teeth. 



Fig. 11. Cenocapsa nirvana, n. sp., . . x 200 802 



The entire shell, with its pavement of small plates and the twenty cruciform 



perspinal holes. 

 Fig. 11 a. A group of small ovate plates which compose the shell ; in each 



plate a dimple with a porule, . . . .X 400 



Fig. 116. A cruciform perepinal hole, seen from the face, . . X 400 



Fig. 1 Ic. A cruciform perspinal hole, with its four teeth, seen in profile, . x 400 



