Fig. 8

Feeding experiment with cocoons laid by freshwater planarians. Thirty test worms were fed cocoons laid by Dugesia ryukyuensis or Bdellocephala brunnea daily for 4 weeks. The figure contains two photographs of cocoons laid by D. ryukyuensis or Bd. brunnea. Test worms at the three stages of sexual induction identified by external observation were expressed as a doughnut chart. The illustrations of worms in the figure correspond to those in Fig. 3b. The number of test worms after the bioassay is shown in the center of a doughnut chart. The percentage of worms at each of the three stages of sexual induction is shown in the box drawn by colored line