S. Yokogawa 
159 
Text-fig. 7. Development of the primordium of the female reproductive system, a. First parasitic 
stage, 30 hours, 0-9 mm.; b, first parasitic stage, 40 hours, 0-98 mm.; c, first parasitic stage, 
40 hours, 107 mm.; d, first parasitic stage, 40 hours, 1-02 nun.; e, first parasitic stage, 
45 hours, 107 mm.; /, first parasitic stage, 35 hours, 1-21 mm.; g, second parasitic stage, 
48 hours, 1-20 mm.; h, second parasitic stage, 52 hours, 1-4 mm.; i, second parasitic stage, 
52 hours, 1-49 mm.; j, second parasitic stage, 72 hours, 1-89 mm. 
