280 TEANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



The exceptions to these general conclusions are 

 represented by two fish which went at once directly North 

 and were caught near the Bahama Lightship, and by one 

 which at once went South and was caught in Holyhead 

 Harbour about seven weeks after liberation, having in 

 that time travelled at least 55 miles. 



Station X I. — M orecambe Bay Lightship. 



It was thought advisable to repeat the above experi- 

 ment, so in May 44 plaice were liberated near the same 

 place but a little further to the West. None of these fish 

 (which had also been caught in Barrow Channel by Mr. 

 Wright) returned to that area, and in one month three of 

 them were caught to the South-East of the place where 

 liberated. Yery few of these fishes have been returned, 

 but such recaptures as have been reported show a general 

 tendency of the fishes to travel to the South and East into 

 shallower water. While trawling in Barrow Channel for 

 these fishes, Mr. Wright caught two of those which he 

 had already trawled there. These were measured and 

 taken out to sea to be used in this experiment, and one 

 of them has already been recaptured. 



Station X 1 1.— f f Chicken Rock, I. 0. M. 



At the end of each hatching season the plaice 

 remaining in the tanks at Piel are turned back again into 

 the sea. We thought it might be useful, however, to 

 mark some of these fishes and liberate them in deep 

 water. Accordingly 11 large mature fishes were taken out 

 from Piel in the " John Fell " and marked and liberated 

 in the deep water South-West of the Calf of Man. None 

 of these fishes have been returned to us. But after a 

 sojourn of two months in small tanks large plaice are not 



