DUTCH BORNEO-EXPEDITION. 149 



of the finger, that of the first one fifth and the second 

 tooth , that is a little larger than the two others , is placed 

 just in the middle; the foremost tooth of the index is si- 

 tuated between the second and the third tooth of the other 

 finger. 



We may conclude from the preceding descriptions that 

 the legs of the second pair are a little un- 

 equal, that the merus is constantly very 

 slightly shorter than the carpus, the diameter 

 of which at its distal extremity measures ^/. 

 its length in the larger leg of adult specimens; 

 that in the latter the chela is almost twice as 

 long as the merus, in younger individuals only 

 once and a half times and that the palm of the 

 larger leg is always distinctly wider than the 

 end of the carpus and a little wider than thick. 

 The foregoing description proves furthermore 

 that the fingers of the larger leg of the adult 

 male are nearly as long as the palm, those of 

 younger males very slightly longer, that the 

 fingers of the females, however, are a little 

 shorter than the palm and finally that they 

 are armed at the base with 3, 4 or 5 minute 

 obtuse teeth and with a sharp cutting-edge 

 between the foremost tooth and the apex. The 

 smaller leg is a little shorter, the carpus some- 

 what more slender and the palm scarcely wider 

 than the end of the carpus, but for the rest 

 this leg agrees with the other. The second legs 

 are smooth, not roughened by minute thorny 

 points, and moderately long hairs are scat- 

 tered on their joints. 



The ambulatory legs are slender and thin; they are 

 smooth, though somewhat hairy. In the adult male the 

 3rd pair of legs exceed the antennal scales by their dactyli , 

 and the fourth aud the fifth reach nearly as far; in the 

 younger males and in the females the third pair of legs 



JSotes from the Leyden Museum, "Vol. XX. 



