AS AN INDEX OF AGE. 



75 



SUMMARY OF EXAMIXATION OF POLLACK SCALES— continne:!. 



Length of fish, 

 cm. inches. 



15-24 

 15-55 

 15-55 

 16-83 

 1(5-83 

 16-83 

 16-83 

 17-14 

 17-14 

 17-46 

 17-46 

 17-46 

 17-46 

 17-78 

 18-09 

 18-09 

 18-66 

 18-66 

 19-05 

 19-05 

 19-68 

 19-68 

 20-0 

 20-0 

 20-63 

 20-63 

 20-63 

 20-95 

 21-27 

 21-27 

 21-90 

 21-90 

 21-90 

 22-86 

 23-49 

 23-81 

 24-13 

 24-44 

 24-44 

 24-44 

 24-76 

 24-76 

 25-08 

 25-08 

 25-08 

 *27-62 

 28-5 

 28-57 

 28-57 

 29-84 

 30-6 

 31-11 

 31-11 

 31-11 

 31-11 

 31-11 

 31-75 

 31-75 

 31-75 

 31-75 



Weight in 

 grnis. 



6-0 

 6-125 

 6-125 

 6-625' 

 6-625; 

 6 -6251 

 6 -6-25 j 

 6-750 

 6-750 

 6-875 

 6-875 

 6-875 

 6-875 

 



•125 

 •125 

 •37 

 •37 

 •5 



not taken 



/ "0 



7^75 



7^75 

 7-87 

 7-87 

 8-12 

 8-12 

 8-12 

 8-25 

 8^37 

 8^37 

 8-62 

 8-62 

 8-62 

 9-0 

 9-25 

 9-37 

 9-5 

 9-62 

 9-62 

 9-62 

 9-75 

 9-75 

 9^87 

 9-87 

 9-87 

 10-87 

 11-22 

 ir25 

 11-25 



ir75 



12^0 



12^25 



12^25 



12-25 



12-25 



12-25 



12-50 



12-50 



12-50 



12-50 



Date of 

 capture. 



40 

 not taken 



55 

 not taken 



55 

 not taken 



)> 

 65 

 75 

 80 

 not taken 

 I) 

 >» 

 >» 



105 

 100 

 115 

 115 

 not taken 



175 

 not taken 



265 

 not taken 



No. of 

 ann. rings. 



April 



Sept. 

 May 

 Sept. 



May 

 Sept. 



April 



Sept. 

 April 



Sept. 



April 



Sept. 

 April 



May 

 April 



)> 



April 

 May 

 April 



May 

 April 



May 

 April 



May 



April 



)> 

 Nov. 

 April 

 May 

 April 



>» 



)> 



May 

 April 



1 + 



-1 



1 + 



-1 



1 



1 + 

 -1 



1 + 



M 

 -1 



1 + 

 -1 



1 + 

 -1 

 1 + 



)> 

 >J 

 )) 

 >» 

 )> 

 >> 

 >I 

 )) 



)> 



3 

 _ 2 



2 + 



Average number of lines of growth 



(excentric lines) in years. 

 1 2 34 5G7S0 



Notes. 



not taken- ------ About 



19 - - 

 27 5 - 



22 - - 



20 - - 



24 - - 



20 - - 

 not taken - 



23 - - 



21 - - 

 23 - - 



25 4 ■ 

 not taken- 



21 8 - 



23 - - 



25 3 ■ 



24 - ■ 



23 - ■ 



26 - • 

 not taken 



24 - ■ 

 29 4 ■ 

 26 5 ■ 



25 5 



26 3 



not taken ■ 



29 - - 



27 5 - 

 not taken - 



25 6 - 



24 8 - 



28 6 - 



25 7 ■ 

 not taken 



28 5 ■ 

 not taken 



25 8 - 

 23 4 - 



26 8 - 

 not taken - 

 *13*13 18 



28 20 - 

 not taken - 



18 24 2 

 not taken - 



2 + 61. 



)i > 



2 + 4 , 

 2 + 8 , 



2 + 1 

 2 



2 + 



-2 





25 24 - 



!not taken- 







See text, p. 74. 



tt See PI. L, Fig. 5. 



1 yr. 6 wks. old, 

 1 .) 6 ,, 

 5 months old. 

 1 yr. 6 wks. old. 

 5 months old. 



>» 

 ) > 



1 yr. 6 wks. old. 

 5 months old. 

 5 ,, 



5 ,. 



1 yr. 6 wks. old. 



1 ,, 6 ,, 

 1 ,. 6 ,, 

 5 months old. 

 1 yr. 6 wks. old. 

 5 months old. 

 5 ,, 

 5 ,, 

 1 yr. 6 wks. old. 

 5 months old. 

 1 yr. 6 wks. old. 



