BIOLOGY OF THE MUTTONFISE 79 



Figure 5 below is a graph sliowing more clearly the relation of weight to leng.th. 

 70 



bo 



50 



CO 40 

 o 



.6 30 





20 



10 



« 



ZO 



30 40 50 



Length in centiTnetr es 



ho 



70 



Fig. 5. Curve showing- tlie relation of the length of the muttonflsh to the weight. 



These results indicate that the muttonfish is not a heavy fish in relation to its 

 length and that the increase in weight in any year is not great. 



There is no difference in weight between the sexes. The average weight of 

 fourteen males in the tenth year of age, average length 49-4 cm. was 1 pound, 9 ounces. 

 The average weight of four females in the tenth year, average length 49-2 cm., was 

 1 pound, 9 ounces. Similarly in the ninth year the average weights of the two sexes 

 were almost identical. 



