PLATE 112. 



Cannosph^ebida. 



Diam. Page 



Fig. 1. Cannosphcera antarctica, n. sp., . . . x 50 1640 



The entire shell. The inner mammillate shell, from the mouth of which 

 is prominent the phaeodium, is connected hy numerous radial beams 

 with the outer shell. 



Fig. 2. Cannosphcera antarctica, n. sp., . . . x 200 1640 



The inner shell, from the mouth of which is prominent the phaeodium, 

 and a single hexagonal mesh of the outer shell, connected with the 

 former by thin radial threads. 



Fig. 3. Cannosphcera antarctica, n. sp., . . . x 200 1640 



A single radial spine, with four terminal branches. 



Fig. 4. Cannosphcera pacijica, n. sp., . . . . x 200 1641 



The inner shell, exhibiting on its base the widely open mouth, and in its 

 upper half the transparent spherical central capsule with its nucleus. 

 Of the outer shell (which is connected with the inner by thin radial 

 threads), only a few polygonal meshes are visible. 



Fig. 5. Cannosphcera atlantica, n. sp., . . . . x 200 1640 



The inner shell, connected by spiny radial beams with the outer shell, a 

 quadrant only of which is visible. 



Fig. 6. Cannosphcera atlantica, n. sp., . . . . x 200 1640 



A single radial spine, with five terminal branches. 



