1 8 ESDAILE, Srn/es of tJirce Specij/iens of Sn lino salar. 



Graph i. 



Showing the averages of the total number of annuli on scales 

 from different regions of the I7lb. tish. 



90 



(0 (2) (3) (4) (5) (6) (7) (S) 

 Numbers of the positions on the fish from which scales 

 were taken. 



Graph 2. 



Showing the averages of the total lengths of Scales 

 from diflerent regions of the 171b. fish. 



60- 



(0 (2) (3) (4) (5) (6) (7) (8) 

 Numbers of the positions on the fish from which scales were taken. 



