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CRUSTACEA OF THE MERGUI ARCHIPELAGO. 271 
is continuous from the base to the tip, but the outer edge is 
obliquely interrupted a little before the middle. The convex 
inner surface of the smaller hand is covered with many hairs, 
especially towards the fingers, which are very hairy on their 
inner surfaces. 
The other legs closely resemble those of A. parvirostris. As 
regards the structure of the carpopodites of the second legs, 
this species resembles A. Kdwardsv. The first joint is a little 
more than twice as long as the second, and a little shorter 
than the other four joints taken together; the third and fourth 
joints are very short and equal, each being half as long as the 
second joint; the fifth joint is longer than the preceding, but still 
a little shorter than the second joint; in the largest specimen 
these joints are respectively 32, 13, i, 7, and 11 millim. long, in 
the youngest example 22, 1}, 2,3, and ¢ millim. In the largest 
specimen the hand is a little shorter than the last three joints 
of the wrist taken together, in younger specimens it is slightly 
longer; the fingers are constantly a little longer than the palm, 
whereas in A. Hdwardsw they are as long as, or even slightly 
shorter than, the palm. 
The form of the legs of the third and fourth pair is very charac- 
teristic of this species, and resembles that of A. parvirostris; they 
are, indeed, less slender than those of A. Edwards, and the mero- 
podites are armed at the distal ends of their inferior margins 
with an acute spine which is not found in Audouin’s species. 
These legs are a little hairy and the propodites are armed along 
their inferior margins with two or three rows of small spines. 
The legs of the fifth pair are also a little less slender than those 
of A. Edwardsit, which they otherwise resemble. The uropoda 
are almost exactly similar to those of Audouin’s species, being 
armed at the base with two acute spines, and the outer rami 
present two or three spines at the external angle of their pos- 
terior margins. The largest specimen is 28 millim. long from 
the tip of the rostrum to the end of the terminal postabdominal 
segment. In the second specimen, likewise a male, the larger 
hand is 134 millim. long, and 6 millim. broad; whereas ina speci- 
men of A. Hdwardsi the larger hand, presenting a similar breadth 
of 6 millim., is 153 millim. long, appearing theretore comparatively 
more slender than that of A. Hippothoé. 
