THE SPERM WHALE 131 



No. 1771. Length 15-47 m. 21. iv. 28. Intermediate, tubules well lined, but nearly all with large 

 spaces. Spermatozoa numerous. 



No. 1770. Length 17-13 m. 19. iv. 28. Resting, nearly all the tubules with large spaces. Sper- 

 matozoa in moderate numbers. 



June. Durban, South Africa 



No. D 37. Length 13-65 m. 22. vi. 30. Smear. Active, fair numbers of spermatozoa in testis; 

 few in epididymis. 



No. D 26. Length 17-80 m. 17. vi. 30. Smear. Active, very few spermatozoa in testis but many 

 in epididymis. 



No. D 50. Length 15-82 m. 28. vi. 30. Smear. Active, very few spermatozoa in testis, but a fair 

 number in epididymis with very abundant epithelial cells. 



No. D 51. Length 15-40 m. 28. vi. 30. Smear. Intermediate, few spermatozoa in either testis or 

 epididymis. 



No. D 38. Length 15-00 m. 22. vi. 30. Smear. Intermediate, few spermatozoa in testis and very 

 few in epididymis. 



No. D 36. Length 14-00 m. 22. vi. 30. Smear. Resting, very few spermatozoa in testis and a few 

 in epididymis. 



No. D 22. Length 15-60 m. 16. vi. 30. Smear. Resting, very few spermatozoa in testis and none 



in epididymis. 



July. Durban, South Africa 



No. D 109. Length 13-60 m. 29. vii. 30. Smear. Active, very few spermatozoa in testis but many 

 in epididymis. 



No. D no. Length 13-90 m. 29. vii. 30. Smear. Intermediate, few spermatozoa in either testis 

 or epididymis. 



No. D 108. Length 13-40 m. 29. vii. 30. Smear. Resting, very few spermatozoa in either testis 

 or epididymis. 



No. D81. Length if85 m. 15. vii. 30. Smear. Resting, few spermatozoa in testis and very few 



in epididymis, but abundant epithelial cells in latter. This whale had only just reached sexual 



maturity. 



August. Durban, South Africa 



No. D 117. Length 15-90 m. 2. viii. 30. Smear. Intermediate, very few spermatozoa in testis but 

 a fair number in epididymis. 



No. D 120. Length 14-35 m. 3. viii. 30. Smear. Resting. Very few spermatozoa in either testis 

 or epididymis. 



No. D 121. Length 16-75 ™- 3- "^i"- 3°- Smear. Resting, very few spermatozoa in testis, none in 



epididymis. 



October. South Georgia 



No. 1829. Length 17-47 m. 20. x. 28. Active, most of the tubules well filled, but many with 

 fairly large spaces. Spermatozoa abundant. 



No. 1830. Length 17-08 m. 22. x. 28. Resting, tubules all with very large spaces and few cells. 

 Spermatozoa in moderate numbers. 



November. South Georgia 

 No. 1879. Length 17-02 m. 5. xi. 28. Intermediate, tubules fairly well lined, but nearly all with 

 large spaces. Spermatozoa fairly abundant. 



The examination of this material, collected in all months of the year except May, 

 September and December, does not indicate any definite sexual season in the male 



