266 
ZOOLOGY OF THE FAR EAST. 
in 
CO t/o u 
+-' 
c tu a. 
256 
n 
c« • 
'-*-H O 
o ex 
+-> ca 
1; P< 
-J 
72 
66 
19-5 
75' 
53 
17-5 I 
20-5 I 
13 I' 
Second peraeopod : length op 
J! 
43 no 
84 
10-8 
72 
10-4 
54 
83 
44 
77 
45 5 
7-5 
37 5 
6-6 
505 
8-1 
43 
7-6 
32-5 
5-6 
30 
5-2 
28-5 
4-9 
25 
45 
Merus. 
Carpus. 
Dactylus. 
i6-i 
15-5 
23 5 
15-8 
149 
138 
179 
12-3 
104 
10-2 
13-2 
9-5 
8-8 
8-8 
9-6 
73 
91 
87 
III 
72 
7-9 
7-9 
8-2 
5-8 
ii-o 
10-3 
T2-4 
1 
7-8' 
9-3 
87 
9-4 
6-6 
66 
7-1 
7-3 
1 
5'I ; 
i 
65 
6-8 
6-4 
4-8 
57 
6-0 
57 
4-5 
5-0 
60 
47 
3-9 
The spinules on the chelipedes agree closely with de Man's description. On the 
outer surface of the carpus there is a comparatively broad longitudinal smooth line 
which separates the closely packed small spinules of the uppsr surface from the very 
much larger and more sparsely distributed spinules of the lower surface. 
In the largest male there are on both chelae five teeth on the fixed finger and four 
on the dactylus ; in the smaller individuals they are less numerous, two or three on each 
finger. The anterior tooth on the dactylus is placed a little behind its middle point, 
the foremost on the fixed finger being posterior to it. These two teeth are larger than 
any of the others and the margin behind each of them is distinctly concave. 
The synonymy of P. neglectus has been dealt with by de Man. In the Indian 
Museum there are two of the specimens which he recorded from Mergui in 1888 under 
the name P. acutirostris. These appear to be specifically identical with those described 
above, but unfortunately all the chelipedes are missing except one, which is small. 
The specimens obtained by Dr. Annandale were found in a rapid running stream 
in the Botanical Gardens at Penang. All of them, in life, bore a small black spot on 
each side of the abdomen at the junction of the ist and 2nd, 2nd and 3rd, 4th and 5th 
and 5th and 6th abdominal somites. No spot occurred at the junction of the 3rd and 
4th somites. In the smaller individuals there was a dark slanting line near the 
posterior margin of the carapace and another, similar to it, not far from the anterior 
I Both chelipedes detached. 
