164 DE. J. G. DE MAN ON THE PODOPHTHALMOTJS 



13 : 95, whilst in M. distinctus it is 13 : 8. In both species the 

 mobile finger does not present the prominent lobe on its inner 

 margin which characterizes M. elegaois and M. intermedins. The 

 fingers are less gaping at their bases than those of M. distinctus, 

 and the prominent lobe along the proximal half of the inner margin 

 of the index is less prominent in this species. The inner surface 

 and the upper and under margins of the palm are minutely gra- 

 nular, as also the upper margin of the mobile finger. The smaller 

 hand resembles the larger, but the index presents no prominent 

 lobe, so tliat the minutely denticulate inner margins of the 

 fingers fit perfectly close together. In younger male specimens 

 the hands are equal and much smaller, and the fingers perfectly 

 close together, leaving no gap between them. 



In young female specimens, the cephalothorax of which is 13 

 or 14 millim. broad, the chelipedes are equal and very small 

 (see Heller, I. c), and their fingers are as long as, or even 

 slightly longer than, the palm. I am unable to describe the 

 chelipedes of the adult female, the collection containing no adult 

 female specimens. 



The ambulatory legs of Jf". dentipes wholly agree with those of 

 M. distinctus, not only in their length and the relative length of 

 the joints, but also in the armature of their meropodites, which 

 have already been fully described by Heller. 



This species therefore differs from M. distinctus by its larger 

 size, by its less enlarged, and more quadrate carapace, by the 

 structure of its infraorbital ridges, and by the form of its 

 chelipedes. 



The largest male specimen is 25^ millim. broad, and 18| 

 millim. long, and the ambulatory legs of the penultimate pair 

 measure 55 millim. 



Metaplax dentipes was discovered by Heller at Ceylon. 



89. Metaplax elegans, n. sp. (PI. XI. figs. 4-6.) 



The collection contains the large number of twenty-nine 

 specimens, fifteen of which were found at Mergui. 



As this new species is closely allied to M. distinctus, M.-Edw., 

 only its distinctive characters need, be recorded. 



Metaplax elegans scarcely attains the size of M. distinctus, 



the largest specimen in the collection being a little smaller 



than the two specimens of the latter species described above. 



" As regards the shape of the cephalothorax, both species closely 



