F. A. E. Crew 157 



29. Sutton. R. temporaria. In an otherwise normal male, slightly 

 developed Mullerian ducts were present. 



30. KoRTHCHAGiN. R. esculentci. In an otherwise normal male, 

 slightly and imperfectly developed Miillerian ducts were still present. 

 The right one had separate anterior and posterior portions, it had no 

 anterior opening and was solid. 



Fig. 25. Fig. 31. 



31. Sumner. (1.) R. virescens. Adult. In an otherwise normal 

 male, Mullerian ducts slightly developed and with no anterior openings 

 were present. 



32. Sumner. (2.) R. virescens. Adult. In an otherwise normal 

 male, very slightly developed Miillerian ducts with no posterior open- 

 ings were present. 



B. BUFO. 

 Division II. Secondary Sexual Characters Typically Male. 

 Group A. On inspection one gonad an ovary, the other an ovo-testis. 

 Sub-group 2. The ovary abnormal in appearance. 



33. Cerruti. (A.) Bufo vulgaris. Adult. Killed January. Secon- 

 dary sexual characters typically male. (When captured was actually in 

 copulation with a large female and appeared strongly excited.) 



