2l6 



Records of the Indian Museum. 



[Vol. XIII, 



much shorter than the entire chela, often only about half its length. 

 In specimens in which the limb is very long the characteristic 

 swollen condition of the palm is most obvious, the tips of the 

 fingers being strongly incurved and crossing each other when the 

 claw is closed. In examples in which the limb is proportionately 

 shorter the palm is less strongly swollen and the tips of the fingers 

 are little, if at all, inturned. 



The last three pairs of legs are slender and usually bear short 

 setae on the posterior margins of the ischium, merus, carpus and 

 propodus. Those of the third pair reach to, or a little beyond the 

 middle of the antennal scale; those of the fifth pair are longer, 

 usually reaching beyond the scale by part or all the length of the 



dactylus. The dactylus is slender and styliform ; in the third pair 

 it is rather less than one half the length of the propodus (text-fig. 

 6a). In the fifth pair it is from one third to one quarter the length 

 of the propodus, being shortest in very large specimens (text- 

 fig. 6b). 



The abdomen is smoothly rounded above in small examples, 

 but in those of large size sometimes bears a blunt and incon- 

 spicuous dorsal ridge extending from the middle of the third somite 

 to the end of the sixth. The sixth somite, measured dorsally, is 

 rather less than one half the length of the carapace. 



The telson reaches to about three quarters the length of the 

 outer uropod ; it is not sulcate dorsally and usually bears two pairs 



