PROTOZOA OR SIMPLEST ANIMALS. 
13 
polar. The radiate spines give off horizontal or tangential spines or High Wall 
plates, which may remain separate (Fig. 9) or may fuse to form a g as e e nd of 
latticed sphere (see Model 13 of Dorataspis diodon in the Case). Gallery. 
III. Nassellaria. The central capsule is conical, and perforated 
Fig. 10. 1 
only by a large opening in the basal region. Eucyrtidium (Fig. 10) and 
Dictyopodium , see Models 14, 15 in Case, are beehive-shaped with three 
segments. The yellow balls situated on the pink central capsule repre- 
sent a symbiotic Alga, commonly found associated with Eadiolaria. 
From “ Encyclopaedia BritannicaJ 
