4 8 4 



TEXT-BOOK £>F ZOOLOGY 



Mediterranean species, are of such wondrous beauty that they ought 

 certainly to be counted among the greatest marvels in Nature's 

 workshop. 



Heliospheea actinota. (x about 100 times.) 



The protoplasmic body is surrounded by a fenestrated silieious shell, which is furnished with 

 numerous large and small spines. Within it is seen the capsule, the centre of which is 

 occupied by the nucleus. "Very delicate pseudopodia are seen radiating in all directions. 



