PLATE 4 



Fig. i6. Fetus 68: (treated male, figs. 16-20), longitudinal section through testis 

 and head of epididymis. 



Fig. 17. Fetus 68: urethra and paired ejaculatory ducts, the capsule of the 

 latter including the prostatic utricle. Partially developed prostatic glands are 

 present. 



Fig. 18. Fetus 68: urethra with seminal colliculus on the summit of which 

 opens the prostatic utricle and laterally open the ejaculatory ducts. Many pros- 

 tatic glands and ducts of the caudal lobe are present. 



Fig. 19. Fetus 68: urethra with bulbo-urethral glands. 



Fig. 20. Fetus 68: glans jjenis illustrating lack of hypospadias. 



[600:1 



