Fig. AK. Conjugating stages of Nyctotherus cordijorviis from Wichterman 



(1937), redrawn. 



1, anaphase stage of third pregamctic micronuclear division at left, with many small 

 chromosomes, telophase of this division at right; 2, conjugating pair showing fusion 

 of pronuclei, one chromosome in each pronucleus; note mingling of macronuclear 

 fragments at anterior ends of the conjugants in both figures. 



239 



