REPORT OF COMMI.SSIOXERS OF IXLAND FISHERIES. 125 



teeth (t) are broad and tubercle-like in form; periodic sequence in 

 arrangement is not evident, and at the posterior part of the jaw the 

 characteristic "double-crushing" teeth have re-appeared. 



The regenerated right claw, on the other hand, is plainly unlike the 

 original "nipper." If we examine the propodite part of the claw 

 (Fig. 31), it is seen that only a few tufts of tactile hairs (h) have 

 regenerated in place of the prominent fringe on the former claw. 

 The teeth are not like the pointed "cutters," but are of the broad 

 tubercle form; and finally, the wide departure of the regenerated 

 structure from the original "nipping" type, and its identity as a 

 "crusher" is completely established by the presence of the character- 

 istic douhle toothed arrangeinent of the tubercles (t'^) at the posterior 

 part of the jaw. 



Specimen No. 9. Figs. 32-35. 



The description just given for the preceding specimen applies 

 with equal truth to the morphological characters of the chelse for 

 the second lobster. Only in the later case the positions of the nipper 

 and crusher are just reversed; so that the original crusher claw 

 (Fig. 33) is on the right, and the original nipper (Fig. 32)on the left, 

 side of the bocl5^ 



The regenerated right claw (Fig. 35) closely resembled the original 

 crusher, while the regenerated left claw (Fig. 34), on the other hand, 

 is plainly unlike the original nipper. In both claws no tactile hairs 

 are apparent on either dactyls or indices, except a few tufts near the 

 angle of the jaws; the teeth are broad and tubercle-like in form; 

 periodic sequence in dentition is not evident; and finally, as in the 

 preceding case, the identity of these two regenerated claws as 

 crushers is completely established by the presence of double-crushing 

 teeth at the posterior dentate margin of each index. 



The detailed morphological analysis of the original and regenerated 

 chela? of both lobsters is more completely compared in the following 

 tabulated data: 



