76 



LIFE IN THE SEA 



[part I 



They are distinctively oceanic organisms. Thus the Challenger 

 found ''great banks" of pelagic foraminifera in the equatorial 

 Pacific, and indeed they occur everywhere in the open sea, 

 particularly in warmer waters in "numberless myriads." When 



Acantho me 

 [dgIIuci d 



Or-bu!ina universa 



Hal osplTaera: zoos JDore 



Fig. 20. Plankton: Protozoa, &c. Magnified. 



obtained from the deep-sea oozes foraminifera only shew a rounded 

 shell (the appearance of the well-known Glohigerina hulloides is 

 now familiar to every one) but when seen in the living state the 

 organism is a thing of great beauty. The shell is sometimes 



