166 DR. J. G. DE MAN ON THE PODOPHTHALMOUS 
as 9:64 (in WL. distinctus as 9:53). The outer and the inner 
surfaces of the hands are rather convex; the outer surface is 
quite smooth, but the inner is a little granular. The fingers 
also much resemble those of JZ. distinctus, but the strongly 
curved mobile finger is armed with a denticulate, prominent, 
triangular lobe nearly on the middle of its inner margin (as 
in some Macrophthalmi), which is not found in the other species. 
In younger individuals this lobe is less developed, and in still 
younger specimens it is quite absent. The mobile finger is 
granular along its upper margin. 
As regards the form of the ambulatory legs, and more especially 
their relative length and the comparative length of their joints, 
both species completely resemble one another; but the meropo- 
dites of the legs of the last three pairs are armed in M. elegans 
with more spines along their upper margins, those of the last 
pair being also armed with eight or nine spines *. 
Dimensions of the largest male specimen :— 
millim 
Length ‘of the cephalothorax ..... .1 . 056i. eh z 
Breadth of the cephalothorax (distance between the 
second antero-lateral teeth)...............086- 15 
90. MrrapLax INTERMEDIUS, n. sp. (Pl. XI. figs. 7-9.) 
Two male individuals of this new form were collected at 
Mergui, along with specimens of the preceding species. 
In the shape and structure of its cephalothorax, this Metaplax 
perfectly resembles J. elegans, except as regards the infraorbital 
ridge and the abdomen of the male. In MH. intermedius the 
lateral margins are four- or five-toothed, just as in J. elegans, 
the second tooth being somewhat larger than the first. The 
infraorbital ridge is prolonged backwards, almost opposite to 
the second lateral incision, and consists of 40-50 small teeth or 
granules, similar to those of IZ. elegans ; but the first or innermost 
four or five are lobuliform, being longer than broad, resembling 
the infraorbital lobules of AZ. distinctus. These lobuliform teeth 
gradually pass into the others, which have the form of granules. 
The male abdomen is also characteristic, being more enlarged 
than that of IZ. elegans ; the first joint is triangular and rounded, 
* T may remark that in the species of Metaplax in which the meropodites 
of the ambulatory legs are spinulose, the spines are often worn off by the 
animal, and therefore sometimes appear to be absent. 
