THE HUMPBACK WHALE 



73 



Mean of Measurement N''] in metres 



Fig. 62. Humpback whale. Logarithmic plotting of total 

 length against measurement no. 3. Tip of snout to 

 blow-hole. 



20 Z5 30 3-5 4'0 



Mean of Measurement N5 4 in nnetres 



Fig. 63. Humpback whale. Logarithmic plotting of total 

 length against measurement no. 4. Tip of snout to angle 

 of gape. 



2'0 2''5 3-0 3-5 



Mean of Measurement N-5 in metres 



Fig. 64. Humpback whale. Logarithmic plotting of total 

 length against measurement no. 5. Tip of snout to 

 centre of eye. 



-r 

 7 



4- 5 T 



Mean of Measurement N^Tin metres 



Fig. 65. Humpback whale. Logarithmic plotting of total 

 length against measurement no. 7. Centre of eye to 

 centre of ear. 



T 

 4 



Mean of Measurement N-S in metres 



Fig. 66. Humpback whale. Logarithmic plotting of total 

 length against measurement no. 8. Notch of flukes to 

 posterior emargination of dorsal fin. 



Mean of Measureme nt N- 9 i n metres 



Fig. 67. Humpback whale. Logarithmic plotting of total 

 length against measurement no. 9. Width of flukes at 



insertion. 



9-2 



