EXTERNAL CHARACTERS OF BLUE WHALES 



30s 



~i I 1 ' r 



10 n 12 



PERCENTAGE VALUE OF MEASUREMENT 



Fig. 39. Blue whales. Variations of measurement No. 17. Flipper, tip to anterior 



end of lower border. 



-| — 1 1 1 r 



1 1 12 13 



PERCENTAGE VALUE OF MEASUREMENT 



Fig. 40. Blue whales. Variations of measurement No. 18. Flipper, length along 



curve of lower border. 



Males. 



Females. 



