THE HUMPBACK WHALE 



23 



Length of Whale in nnetres 

 Fig. g. Male Humpback whales. Measurement 

 no. 10. Notch of flukes to centre of anus. 



9 10 II 12 G 



Length of Whale in metres 



Fig. 10. Female Humpback whales. Measurement 



no. 10. Notch of flukes to centre of anus. 



a 9 10 II 12 13 



Length of Whale in nnetres 



Fig. II. Male Humpback whales. Measurement 



no. II. Notch of flukes to umbilicus. 



Length of Whale in metres 

 Fig. 12. Female Humpback whales. Measurement 

 no. II. Notch of flukes to umbilicus. 



10 II 1? 13 



Length of Whale in metres 



Fig. 13. Male Humpback whales. Measurement 



no. 12. Notch of flukes to 'end of system of 



ventral grooves. 



Length of Whale in metres 



Fig. 14. Female Humpback whales. Measurement 

 no. 12. Notch of flukes to end of system of 

 ventral grooves. 



9 10 II la 13 14 IS 



Length of Whale in metres 



Fig. 15. Male Humpback whales. Measurement 



no. 13. Centre of anus to centre of reproductive 



aperture. 



The graphs are from data obtained at South Georgia 



DXVII 



10 II 12 13 14 15 



Lengtti of Whale in metres 

 Fig. 16. Female Humpback whales. Measurement 



no. 13. Centre of anus to centre of reproductive 



aperture. 

 , Data from South Africa are indicated by O. 



