934 



MB. H. H. BRINDLET ON BEPRODTJCED [DcC. 13, 



Table A. 



species with a shorter post-embryonic development than Stylopyga 

 orientalis reproduction is more rapid. The latter is an unfavourable 

 form for observations of this kind, but was selected as being the 

 species most easily obtainable in large numbers. However long the 

 internal between mutilation and ecdysis, the reproduced legs were 

 always smaller than their normal fellows, nor could I hnd any 

 particular differences in size between legs reproduced and liberated 

 by ecdysis after short and long periods respectively. The new 

 growths were distinctly dwarf when they appeared after as many 

 as 220 days after mutilation. In a certain number of cases 

 reproduction did not occur even when much longer periods between 

 mutilation and succeeding ecdysis had elapsed than are given in 

 the above table. Thus, amputation at the tibio-femoral articulation 

 or in the middle of the tibia was not followed by any reproduction 

 after intervals of 102, 112, and 192 days. The parts from the 

 femoro-trochanteric suture were not reproduced after an interval 

 of 116 days in another case. In these same instances, however, 

 the lost tarsus of another leg was reproduced, thus favotiring the 

 conclusion that there is a relation betw-een the extent of the injury 

 and the time necessary for reproduction. It seems probable that 

 these exceptional cases of non-reproduction after long periods 

 should be attributed to individual causes. The facts that non- 

 reproduction was always total {i. e., that ecdysis left the limb 

 in the same condition as at mutilation) and that when reproduction 

 did occur it was always complete (/. e., the several regions of the 



