DUTCH BORNEO-EXPEDITION. 14-7 



second legs are smooth, the small thorny points, by 

 which these legs in other species are roughened, wanting 

 throughout; fine, moderately long hairs, how- 

 ever, are scattered on all their joints and 

 these hairs are characteristic of this species. 



In the ova-bearing female from the Ketoengau river 

 the right leg is the larger; it measures ^/j the length of 

 the body and exceeds the end of the antennal scales by 

 a third of the carpus. As is proved by the measurements, 

 this leg agrees with that of the male as regards the rela- 

 tive length of the joints , but the fingers are very slightly 

 shorter than the palm. Each finger (Fig. 2^') presents 

 five obtuse teeth, but the fifth or foremost is placed on 

 each a little fiarther distant from the articulation ; on the 

 dactylus this tooth is but slightly more distant from the 

 apex than from the articulation and on the immobile fin- 

 ger it is placed likewise a little farther forewards ; on 

 each finger a sharp cutting-edge unites again the foremost 

 tooth and the apex. The carpus widens slightly less towards 

 its distal end and the palm is somewhat broader in pro- 

 portion to its length than in the adult male : the palm 

 appears therefore distinctly wider than the 

 carpus, the difference being greater. The left leg is a 

 little shorter than the right, the carpus slightly more 

 slender, the width at the distal extremity measuring only 

 ^/g of its length and the palm is a little narrower, the fingers 

 are armed each with 4 minute teeth. 



In the young male from Nanga Raoen the left leg is 

 also a little shorter than the right and its joints appear 

 slightly more slender. Both legs exceed the end of the 

 antennal scales by a fourth of the carpus. As in the adult 

 male, the right leg is but little more than half as long 

 as the body. The merus measures ''■j. of the whole leg, 

 the carpus is again slightly longer and the dia- 

 meter at its distal end measures ^/^ of its length. The 

 hand is once and a half as long as the merus 

 and appears therefore comparatively shorter than in the 



Notes from the Ley den M^useum, "Vol. XX. 



