CONTROL OF SEX BY FOOD IN ROTIFERS 



279 



Diagram 5. Diglena catellina. Experiment 20 of table 4. Showing the 

 percentage of males produced when the diets were changed. P indicates the 

 feeding of a Polytoma diet, G indicates the feeding of a mixed green flagellate diet. 



Fig. 4 Diglena catellina. A, female; B, male; C, parthenogenetic female 

 egg; D, parthenogenetic male egg; E, fertilized egg. 



