were described as " nearly ripe." Tlic condition of the reproductive organ was 

 ascertained for only 1 of the females ; it was " immature." 



Tlius, within a year of liberation, 52, or 73-2 per cent., of the marked plaice 

 were recaptured, particulars being obtained for 50 of them. Of thes^e, 33 (or 

 66 per cent.) migrated to the nortli and east ; 4 (or 8 per cent.) moved north and 

 west ; 6 (or 12 per cent.) went south and east ; and 7 (or 14 per cent.) went south 

 and west. 



The date of recapture of 1 fish is unknown. The remaining 18 were recaptured 

 as follows :— One in December 1911, 9 in 1912, 6 in 1913, none in 1914, 1 in 1915 

 (March), and 1 in 1916 (February). 



The fish, a female, which was recaptured in December 1911 had moved 11 miles 

 to the north-east, and was " almost ripe " w^hen taken. Of the 9 fish caught in 

 1912 (from January to December), the place of recapture of 1 was not ascertained ; 

 of the remaining 8, 6 had migrated to the north-east, along the coast ; 2 of these 

 were caught in the Moray Firth, at distances of 157 aiid 129 miles; 1 of these, 

 a male, taken in February, was " nearly ripe " ; the other, also a male, caught 



