REPORT OF COMMISSIONERS OF INLAND FISHERIES 



113 



* Original normal chelte. 



From this data it may be seen that the lobster moulted on October 

 5, eighty-sLx days after the amputation. The chelae, which had 

 regenerated by this time, are shown in figures 8 and 9. Here again 

 both appendages are not only very similiar in form, but the arrange- 

 ment of the pointed cutting teeth and the presence of tactile hairs 

 clearly show that this pair of regenerated limbs are also of the 

 "nipper" type of chelae. 



III. 



Regenerated Abnormal Chelipeds. 



It will be observed that all of the abnormal appendages so far 

 described were found either in museum collections or on lobsters 

 taken from the traps, and consequently we have no positive data 

 as to their origin. The next specimens about to be described were 

 obtained during a series of experiments on regeneration made at 

 the Experiment Station. 



1. The Regeneration of a Triple Claw on a Walking Leg. 



Specimen No. 7. Figs. 10-18. 



The lobster on which this abnormal regeneration occurred was a 

 female and measured 8 3-16 inches in length. The animal had been 

 recently taken from the traps and placed in a floating car. It was 

 in normal condition, and its chelae showed the usual asymmetry, with 



