REPORT OF COMMISSIONERS OF INLAND FISHERIES. 



105 



Table IV. — Ccntinued, 



Date. 



Appendage. 



Mutilation. 



Moult. 



Length. 



Per cent, 

 gain of 

 regen. 



V. 



Aug. 23. . 



Sept. 6. 



R. cheliped. 

 L. cheliped. 



Removed . 



Sept. 6. 



R. cheliped. . Removed . 

 L. cheliped. 



VI. 



Aug. 17. . . 

 Aug. 29. . . 

 Sept. 10.. 



R. cheliped. 

 L. cheliped. 



R. cheliped. 

 L. cheliped. 



R. cheliped. 

 L. cheliped. 



Sept. 28 (?) . . 



15|mm. 

 17mm. 



17 mm. 

 23 mm. 



90 ^ 



h^ 



73 A 



Removed . 



Aug. 27. 



Removed . 



Removed . 



Sept. 8 (?) 

 Oct. 2 (?).. 



mm. 

 13tam. 



13 mm. 

 15^mm. 



1.5 mm. 

 20 mm. 



83/o Lvi 



75 



It will be seen that at each removal the right cheliped usually showed 

 a diminishing per cent, of gain when compared with the correspond- 

 ing normal appendage; in other words, in each successive regener- 

 ation there was a larger per cent, of difference between the regener- 

 ated and normal limb. Interesting results might, perhaps, be ob- 

 tained by a continuation of such an experiment through a much 

 longer period of time; but it would be hasty to conclude that the 

 above data proved a decrease in the regenerative power, because, as 

 will be noticed, each successively regenerated cheliped does show 

 a per cent, of gain when compared among themselves; as, for ex- 

 ample, in lobster No. 4 the measurements for the right cheliped at the 

 successive moults are 13, 14, and 17^mm., thus showing a continuous 

 increase (although the same is not true in lobster No. 1). So the 

 present data are insufficient for a positive answer to the original 



