REPORT OF COMMISSIONERS OF INLAND FISHERIES. 183 



Table No. 14. 



Data on the rate of growth of mutilated "chicken" lobsters.f 



tMost of the individuals in this group of lobsters were intentionally or unintentionally in- 

 jured, and were being made use of in the study of regeneration. 

 ♦Represent specimens which were the least injured. 



The foregoing table demonstrates that in this group of lobsters the 

 increase in length is only 8.3 per cent. This unexpectedly small 

 percentage is no doubt partly due to the fact that the lobsters be- 

 longed to a set which was used in experiments in regeneration, and 

 nearly every individual possessed two or more regenerating ap- 

 pendages; and this fact, as we have already noted in previous cases 

 (Table No. 6), may reduce the normal percentage of increase, as was 

 the case in the fifth stage, even to 5.3 per cent. We may, perhaps 

 with fairness, estimate 10 to 12 per cent, as the actual rate of increase 

 for normal lobsters of the size under consideration. It may, however, 

 be of advantage to consider the cases of molting lobsters mentioned 

 by Brook ('87). The facts in one instance may be tabulated as 

 follows: 



