52 



ZOOLOGY 



overlap the older (9, 10), or in an irregular spiral of globular 

 chambers (6), or in an extremely compact spiral in which the new 

 chambers completely enclose their predecessors (11). In all cases 



''■III Wm\\\ \\\\\ 



Roralla 



3.Squammulina 



4.M i I i o I a 



Fia. 35. -Various forms of Foraminifera. In U, Miliola, a, shows the living animal ; 

 6, the same killed and stained ; a. aperture of shell ; j. food particles ; nu. nucleus ; sh. shell. 

 (From Biitschli's Protozoa and Claus's Zoology.) 



adjacent chambers communicate with one another either by a 

 single large hole or by numerous small ones: the protoplasm 

 is thus perfectly continuous throughout the organism. With the 



