66 THE WORLD OF THE SEA. 
upon the water in no determined shape, and the eye is just able 
to distinguish upon their surface dark and light specks. Under a 
RADIOLARIA MONOZOA. 
(Amphilonche heteracantha.—Haeckel.) 
strong magnifying power all the delicacy and beauty of these 
wonderful organisms are exhibited. In the splendid work of 
RADIOLARIA POLYZOA. 
(Spherozoum ovodimare.—Haeckel.) 
M. Haeckel, the variety of forms, the fantastic shapes of these 
innumerable legions of minute creatures are given. He has dis- 
tinguished the Radiolaria into those which live in isolation, which 
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