REPRODUCTION 



229 



funnel-like peristome. The nucleus divides equally, one-half passing 

 into the swelling which, with only partial peristomial development, 

 breaks away from the parent and then completes its peristomial 

 differentiations. 



Fig. WQ.—Councilmania lafleuri, a parasitic intestinal amcsba. A, normal, 

 vegetative individual; B, to E, encysted individuals and formation of eight endo- 

 genous buds which escape one by one (B, C) . (After Kof oid and Swezy.) 



In Suctoria similar exogenous buds, either single or multiple, are 

 formed from the oral extremity of the cell (Fig. 111). Such buds 

 are dissimilar to the parent which they come to resemble only after 

 a period of metamorphosis and development. 



In Sporozoa with the exception of some Cnidosporidia, exogenous 

 budding is limited to unequal division in gamete-forming processes. 



