STEUCTUEE AND REPRODUCTION 21 



unfrequently it happens that at a spot where two or 

 more filaments meet and fuse together a lamina is 

 formed by the expansion of the viscous protoplasm 

 that flows towards this point ; and from such an 

 expansion a new set of thread-like processes is given 

 off, as from the central body.' 



/ 







Fig. 13. — Sarcode Body of Rotalia Beccapji, Megalospheric 

 FoRJi, WITH A Nucleus in the Eighth Chamber, x 170. 



After Lister. 



As in the case of other protozoa the Foraminifera 

 possess a nucleus, and sometimes contractile vacuoles 

 (iig. 13). 



For a long time, however, the presence of a 

 nucleus in the Foraminifera remained undiscovered. 

 It was in the genus Gromia that Dr. Wallich, 

 the pioneer of deep-sea research, first observed it. 



