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DISCOVERY REPORTS 



Table III. Sperm whale. Mean values of measurements of male and female whales 



expressed as percentages of total length 



Tables IV and V show the manner in which the body proportions vary with the size 

 of whale. In these tables the mean value of each measurement for each metre of whale 

 length is given, together with the numbers of measurements producing each mean, and 

 the range of variation of each value. The figures are given as the actual values in metres 

 in roman type, and expressed as percentages of total length in italic type. The figures 

 expressed as percentages of total length are first discussed : those of the actual values are 

 dealt with in a later section of this report. 



The variations of the body proportions according to the length of the whale are shown 

 graphically for measurements Nos. 4, 5, 6, 7, 8, 9, 10, 11, 13, 16, 17, 20, 21 and 25, in 

 Figs. 1-14, in which the percentage value of the measurements is plotted against the 

 total length of the whale. Curves for each sex are shown separately, but those for the 

 female are necessarily short owing to the small range of total length shown by the 

 females examined. The variations of measurements Nos. 2 and 3,14 and 15,18 and 19, 



