PLATE 11 



ASTROSPH^ERIDA. 



Diam. Page 

 Fig. I. Lychnosphcera regina, n. sp., . . . . x 200 277 



The entire shell and the central capsule. Numerous club-shaped radial 

 apophyses or coecal sacs arise from the pink central capsule and are 

 protruded through the pores of the medullary shell, which is com- 

 pletely hidden by them. The sarcomatrix in the calymma, surrounding 

 the central capsule, exhibits a fine radial striation. Numerous retracted 

 pseudopodia, bearing red granules, arise from the sarcomatrix and 

 pierce the calymma radially. The interval between the two concentric 

 shells is filled up by the hyaline calymma. 



Fig. 2. Lychnosphcera regina, n. sp., . . . . x 400 277 



A part of tbe cortical shell, with a radial spine. 



Fig. 3. Lychnosphcera regina, n. sp., . . . . . x 400 277 



The medullary shell and the basal parts of the radial spines arising from it. 



Fig. 4. Lychnosphcera regina, n. sp., . . . . . x 400 277 



Distal end of a radial spine. 



Fig. 5. Rhizoplegma lychnosphcera, n. sp., . . . x 200 276 



The central capsule and the enclosed parts of the skeleton. The protoplasm 

 is radially striped. The central nucleus (red) sends out numerous 

 radial apophyses, which are protruded through the pores of the medul- 

 lary shell. 



