Plate C. 



(After Brady.) 



FiQS. 1-8. Hastigerina pelagica. Figure 1, living specimen, the test enveloped 

 in a mass of vesicular protoplasm from which radiate the pseudo- 

 podia. X 35. Figures 2-4, specimens showing the peculiar 

 spines with their serrate edges. X 38. Figures 5, 6, specimens 

 of the smooth, brop,d form. X 40. Figure 5, side view; figure 6, 

 apertural view. Figures 7, 8, specim.ens of the more compressed 

 libulate form with the bases of the spines appearing on the general 

 surface. X 40. 



51 



