153 



days, off Fife Ness, at a distance of 31 miles to the westwards. The other 3 

 females were under the adult size. One was taken, after 238 days, 26 miles to the 

 north and east ; another, after 248 days, was got in St. Andrews Bay, close inshore ; 

 and the third, after 253 days, well into the Firth of Forth, to the west of Ehe, at a 

 distance of 58 miles. 



Li the third quarter, therefore, 11 fishes, or 20-4 per cent., were recaptured, but 

 the position of 1 was not recorded ; of the others, 5 (50 per cent.) went north 

 and west, towards the coast, and 3 north and east ; 1 went south and east, 

 and 1 directly west. 



Fourth Quarter.— A female, of 34-37-2 cm., and " inunature," was recaptured 

 in March 1913, after 285 days, offshore, off Aberdeen, at a distance of 43 miles. 



In April, after 296 days, a female, of 42-45*3 cm., and " spent," was taken 5 

 miles to the east. 



Four were caught in May, 1 male and 3 females. The male, measuring 

 35-5-37-3 cm., and " spent," was caught, after 350 days, off Montrose, at a distance 

 of 31 miles to the north and west ; one of the females, of 37"5-4r7 cm., the con- 

 dition of whose ovaries was not recorded, was taken, after 337 days, at a distance 

 of 15^ miles in the same direction ; another, measuring 30'5-33-5 cm., and " im- 

 mature," was recovered, after 328 days, off Dunbar, 34 miles to the south and 

 west ; and 1, of 30"5-33'5 cm., and "immature," was caught, after 352 days, to 

 the north of Aberdeen, at a distance of 59 miles. 



TTius, in the fourth quarter, 6 plaice, or 11*1 per cent., were recaptured, 2 to 

 the north and east, 2 to the north and west, 1 to the east, and 1 to the south and 

 west. 



In the 12 months immediately following liberation, 38 of the marked 

 plaice, or 70*4 per cent., were taken, but the place of capture of 1 was not known. 

 Twelve (32"4 per cent.) migrated north and west, towards the coast ; 6 (16"2 per 

 cent.) to the north and east ; 12 (32"4 per cent.) to the south and west, towards 

 the Forth ; 3 each to the west and to the south and east, and 1 to the east. 



[TablU.- 



