THE ORGANIZATION OF THE PROTOZOA 



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FIG. 21. Oromia ovi- 

 formis, M. Schultze 

 (=O. ovoidea, 

 Rhumbler), living 

 specimen with out- 

 stretched pseudo- 

 podial network 

 (ps.), in which a 

 diatom (d.), Navi- 

 cvla sp., is en- 

 tangled and will be 

 drawn into the 

 shell (ah.). Other 

 diatoms are seen 

 inside the shell, and 

 at its fundus 

 several nuclei are 

 seen as clear spheri- 

 cal bodies in the 

 protoplasm. The 

 pseudopodial net- 

 work is drawn at 

 a magnification of 

 about 200 linear, 

 but for want of 

 space is repre- 

 sented extending 

 over about one- 

 third of the area 

 over which it com- 

 monly spreads. A 

 part of the pseu- 

 dopodial network 

 is reflected back 

 over the shell, and 

 streams out back- 

 wards from the 

 pole opposite to 

 the shell - mouth. 

 After M. Schultze. 



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