THE NUCLEI OF UROLEPTUS MOBILIS 



3C7 



packed condition. Whichever method occurs, they are con- 

 tinued as rods in the daughter nuclei where they undergo sub- 

 sequent divisions until the definite nuclei are formed (figs. 10 

 to 17). The fully formed spindle measures 3 ^ in length (figs. 

 22 and 23). 



V 



Fig. 22 Micronucleus in metaphase of vegetative mitosis. Se^ven chromo- 

 somes could be counted, probably eight are present. X 31^00. 



Fig. 23 Telophase of vegetative mitosis. X 3200. 



Figs. 24, 25 and 26 Conjugating specimens with parachute stage of first 

 maturation nuclei. One to three degenerating micronuclei. Macronuclei finely 

 granular. X 800. 



THE JOURNAL OF EXPERI.MENTAL ZOOLOGY, VOL. 27, NO. 3 



