— 
meee, 
CRUSTACEA OF THE MERGUL ARCHIPELAGO. 235 
or six spinules, and the internal with two. The eye-peduncles 
are marked with similar reddish-brown lines to those apparent 
in D. merguiensis. 
_ The legs much resemble those of the latter species, so that I 
will only describe their distinctive characters. The meropodite of 
the larger chelipede is quite similar to that of D. merguiensis. 
Also as regards the carpopodite, both species nearly agree with 
one another, but in D. miles the tubercles of the upper surface 
are somewhat more numerous, smaller, and less piliferous; 
as in D. merguiensis, two parallel rows of somewhat larger 
acute spinules are found along the inner margin of the upper 
surface. As regards its shape and form, the larger hand 
is quite similar to that of D. merguiensis; its outer surface, 
however, is covered, in the Mergui specimen, with much more 
numerous, much smaller, and quite glabrous granules. In both 
species the lower margin of the immobile finger makes a straight 
line with the lower margin of the palm. Towards the upper 
margin, and near the articulation with the wrist, these granules, 
nuw ver are slightly larger and acute, and the upper margin of 
the palm presents two parallel rows of acute spinules, much as 
in D. merguiensis. The inner surface of the palm is a little 
granular and hairy in the middle, being armed with a few 
sparsely distributed small granules; near the upper margin it 
presents some acute spinules, and the under surface or margin 
of the palm is also a little more coarsely granulated. The outer 
surface of the fingers is covered with much more numerous and 
much smaller granules than in D. merguiensis, and their inner 
margins are more distinctly dentate. The granules of the fingers, 
like those of the outer surface of the palm, are not piliferous, 
but quite glabrous. As in D. merguwensis, the inner margins of 
the fingers on both sides of the teeth present some small tufts 
of hairs. The upper margin of the mobile finger likewise presents 
two parallel rows of acute granules, those of the external being 
much larger than those of the internal row; these granules, 
however, are much smaller in D. miles than in D. merguiensis, in 
which they are more spiniform ; they are also more numerous, 
the external row consisting of about 30 granules, whereas in 
D. merguiensis there are only 16 or 17. They gradually diminish 
in size towards the pointed, hooked tip. The upper margin pre- 
sents some few hairs. On the middle of the smooth inner surface 
of the thumb some small granules are observed, more numerous 
