48 



HANDBOOK OF PROTOZOOLOGY 



Fig. 22 a-j. Nuclear division in Trichonympha campanula. X400. (After 

 Kofoid and Swezy). a, beginning of division of the centroblepharo- 

 plast, the nucleus in prophase; b, nucleus in prophase; c, two cen- 

 troblepharoplasts and the paradesmose between them; d, close 

 association of the nucleus and paradesmose; e, formation of spindle 

 fibers; f, metaphase, the paradesmose is on the opposite side of 

 the nucleus; g, anaphase; h-j, telophase, 

 k-u. Nuclear division in Lophomonas blattarum. X1150. (After 

 Kudo), k, resting nucleus; 1, m, prophase, n, metaphase; o-r, ana- 

 phase; s-u, telophase. 



