208 



Records of the Indian Museum. 



[Vol. XIII, 



It will be noticed that the merus is the longest segment and 

 that the carpus is distinctly shorter than the palm and is less 

 than half the length of the fingers. The palm is strongly swollen 

 and the fingers are straight with conspicuously inturned tips that 

 cross one another when the claw is closed. 



The last three legs are of extraordinary length and slender- 

 ness and are usually found broken in preserved material. In a 

 few individuals in which they are present they yield the following 

 measurements (in mm.) : — 



The extreme length of these legs^ is due in the main to the 

 lengthening of the propodus and dactylus ; the carpus in all cases 

 is quite short. The third legs are at least two thirds the entire 

 length of the animal; the fourth and fifth pairs are much longer, 

 considerably exceeding the total length. The dactylus is broken 

 in all the specimens examined ; when complete it is evidently much 

 longer than the combined lengths of the rostrum and carapace 

 and more than twice the length of the propodus. Henderson 

 notes that the dactylus of the last legs (in a specimen measuring 

 55 mm. from the orbit to the apex of the telson), though broken 

 at the tip, was 45 mm. in length. 



Except for the first pair the peraeopods are entirely devoid 

 of hairs. 



1 The specimens measured are the same as some of those in the table pre\"iousIy 

 given. The serial numbers afford individual reference. 



2 I understand that the figures illustrating Dr. Henderson's valuable "Con- 

 tribution to Indian Carcinology " were not drawn under the author's supervision, 

 but were executed after his return to India. In the figure of L. teiuiipes the pro- 

 portions of the segments of the last three legs are wholly erroneous. 



