I PHYLUM PROTOZOA 27 



of being comparatively short and thick, as in Amceba and in 

 the other Lobosa, or extremely delicate, flexible, and thread- 



like, as in the Foraminifera, are slender, but comparatively 

 stiff, and stand out straight from the surface of the sphere 

 in a radiating manner : they are capable of only very slow 



