PHYLUM PROTOZOA 



2.Logena 



4.Frondicularia G.GIobigerma 



Aflfc, 



O.Pianorbulina 



ll.Nummulires 



FIG. 5. Shells of Foraminif era . In 3, 4, and j, a shows the surface view, and b a 

 section; 8a is a diagram of a coiled cell without supplemental skeleton; 8b of 

 a similar form with supplemental skeleton (s. sk) ; and 10 of a form with over- 

 lapping whorls; in na half the shell is shown in horizontal section; b is a ver- 

 tical section; .*, aperture of shell; i 15, successive chambers, i being always 

 the oldest or initial chamber. (After Carpenter, Brady, and Butschli.) 



