CRUSTACEA OF THE MERGUI ARCHIPELAGO. 279 
little shorter; they are ovate, ciliated along their internal 
margins and at their rounded anterior ends, and their external 
margins terminate anteriorly in a small spinule. 
As in H. spinifrons, the, outer maxillipeds are very elongate 
and project much beyond the antennal scales, the penulti- 
mate joint of which is a little shorter than the terminal joint, 
extending a little beyond it. The penultimate joint is armed 
with a small spinule at its distal end; along the upper margin 
of the terminal joint (fig. 4) four or five similar spinules are 
observed, and four or five spinules occur also at the terminal, 
obliquely truncated end of the joint. The last two joints are 
ciliated, the cilie being partly arranged in transverse rows. 
The equal, rather slender, anterior legs do not extend so much 
forward as the outer maxillipeds, being shorter than them and 
quite unarmed, although a little hairy. The meropodites are 
slender and project as much forwards as the eyes; the carpopo- 
dites are a little longer than half the length of the meropodites, 
and gradually appear a httle thicker towards their distal ends. 
The hands (the palm and the fingers taken together) are a little 
longer than the carpopodites; the fingers are shorter than the 
palm, measuring two thirds of it, and are provided with some 
small tufts of short hairs. 
The second legs are filiform and longer than the outer maxilli- 
peds. ‘The ischiopodites of these legs extend forwards nearly 
to the anterior margin of the carapace; the meropodites are a 
little longer than the ischiopodites, and reach almost to the 
distal end of the antennal scales or the middle of the penultimate 
joint of the external maxillipeds. The carpopodites, which are 
84 millim. long, are twice as long as the meropodites, and almost as 
long as the carapace (the rostrum included); they are divided into 
24 or 25 joints; the terminal joint (fig. 5) is twice as long as the 
other joints, and presents a small tuft of hairs close to its articu-. 
lation with the hand. The other joints of the carpopodite are 
naked. The hands (the palm + the fingers) are as long as the 
three terminal joints of the carpopodite taken together; the 
palm is nearly as long as the terminal joint of the wrist; and the 
somewhat hairy fingers are a little shorter than the palm. 
The other legs are partly broken, so that I can only add 
the following. The meropodites of the legs of the third: pair 
extend as much forward as those of the legs of the first pair, and 
are armed with a small spinule near their distal ends. The pro- 
