236 



The following table shows how all the fish of the experiment were distributed 

 in each quadrant : — 



Distances migrated — 10 miles and under.— Only 2 (6-6 per cent.) were found 

 under this category, both females (10 per cent.) ; 1 at 6 and 1 at 10 miles, both 

 to the north and west. 



10 to 20 miles. — Nine, or 30 per cent., were taken at from 11 to 16 miles ; 2 

 males (20 per cent.), with an average of 14-5 miles, and seven females (35 per cent.), 

 with an average of 12-1 miles. Both males and al! the females were found to the 

 north and west. 



Thus, 11 were recaptured at distances under 20 miles, 2 males and 9 females 

 (45 per cent.). 



20 to 50 miles. — Six, or 20 per cent., were found at distances of from 20 to 42 

 miles ; 2 males (20 per cent.), witli an average of 39-5 miles, and 4 females 

 (20 per cent.), witli an average of 33-7 mil^^s. All these fish were found to the 

 south and west. 



50 to 100 miles. — Eight, or 26-6 per cent., were taken at between 63 and 97 miles ; 

 5 males (50 per cent.), with an average of 80-8 miles, and 3 females (15 per cent.), 

 with an average of 87-6 miles ; 4 of the males and 2 of the females were found 

 to the soutli and west, and 1 male and 1 female to the north aiid east. 



Over 100 miles. — Five, or 16-6 per cent., were recaptured at distances of from 

 104 to 188 miles ; 1 male with a distance of 113 miles to the south and west, and 

 4 females (20 per cent.), with an average of 132 miles, 2 to the south and east, and 2 

 to the south and west. 



Maturity. 



Males. — The condition of the testes was recorded for 8 of the 11 males. One, 

 taken in December 1914, off Buchanness, 113 miles to the south and west, was 



