156 CRUSTACEANS OF TUK 



are somewhat shorter in proportion to the length of the body ; 

 the carpus is a little more slender and the spines on the 

 inner surface of this joint and of the hand are less deve- 

 loped , but for the rest these legs agree with those descri- 

 bed above. 



The young male from the Ketoengau river likewise agrees 

 with the preceding, in both legs the merus appears quite 

 as long as the carpus ; the carpus of the shorter left leg 

 is a little more slender , being slightly more than three 

 times as long as broad at the distal extremity and the 

 fingers are a little longer than the palm. 



In the youngest male from Nanga Raoen the left leg 

 (Fig. 3^) is longer than the right and reaches with the hand 

 and a third of the carpus beyond the end of the antennal 

 scales; the right leg, 1,5 mm. shorter, exceeds the scales 

 with the hand. In both legs the carpus is slightly shorter 

 than the merus and appears a little more slender 

 than in the adult specimens , its diameter at the distal 

 extremity measuring scarcely one third of its length. In 

 both legs the dactylus is armed with two , the immobile 

 finger with three minute teeth. The distance of the distal 

 tooth of the dactylus from the articulation is , in both 

 legs , slightly larger than one third of the length of the 

 finger, that of the proximal tooth exactly one fourth of 

 it. The distance of the foremost or third tooth of the 

 index from the articulation measures , in both legs , one 

 third of the length of the finger , that of the second tooth 

 from it one fourth; in the left hand the first or proximal 

 tooth, somewhat smaller than the two others, is conti- 

 guous to the second , in the right hand its distance from 

 the articulation measures one sixth of the length of the 

 finger. Minute thorny points are already developed on the 

 inner surface of carpus and palm ; they present themselves 

 as small spinules on the inner margin , but the outer 

 surface of these joints is still nearly smooth. The third 

 pair of legs extend to the end of the antennal scales , 

 the following reach slightly less foreward. 



Notes from ttie Leyclen Museucn, "Vol. XX!. 



