PROTOZOA 



41 





B 



Fig. 32. Radiolaria without skeleton. A, Thalassicolla pelagica, x 20. After 

 Haeckel. B, Collozoum inerme. C, A central capsule of the same, more highly 

 magnified. After Doflein. cal. calymma; cps. central capsule; nu. nucleus; 

 oil, oil globule; ^5. pseudopodium ; j^.c, "yellow cells" (Zooxanthellae). 



