236 
ZOOLOGY OF THE FAR EAST 
Yokohama (Berlin Mus.), a large male from Shanghai (Haberer coll.) and three rather 
small females from the same locality (Annandale coll.). 
The carapace in these specimens yields the following measurements (in mm.) : — 
at extra- 
angles. 
at base of 
niate legs. 
T.nf 4T TTV 
readth 
irbital 
Breadth 
penulti 
M) 
a 
<u 
Yodo R., nr. Osaka 
cf 
31-8 
33"3 
30-5 
)> )) • • 
? 
25-9 
27' I 
24- 1 
>j )> • • 
9 
21 9 
22*0 
202 
)> )> • • 
d' 
ig-o 
18-4 
lyo 
Yokohama . . 
d 
32-6 
337 
310 
Shanghai 
32-0 
31-8 
299 
it ' ' 
9 
197 
19-5 
177 
j> 
9 
19-9 
W3 
17-4 
>> • • ■ • 
9 
15-9 
15-2 
13-6 
It will be seen that as regards the proportion between length and extra-orbital 
breadth there is scarcely any difference between Japanese and Chinese specimens ; 
but in large males from Japan the breadth at the base of the penultimate legs is a 
trifle greater than that at the extra-orbital angles, whereas the reverse is found in the 
large male from Shanghai. The difference is an extremely small one. 
In large Japanese specimens the front is much more deeply excavate in dorsal 
view than in the large male from Shanghai, but this character is variable in smaller 
specimens from both localities. 
In the large male from Shanghai the outer surface of the palm is obscurely 
granulate in its lower half, the upper half being nearly smooth. In the large males 
from Japan it is coarsely tuberculate both above and below. The vertical row of 
large tubercles on the inner face of the palm in the latter specimens is represented in 
example from Shanghai by a number of much smaller tubercles not arranged in a 
definite row. 
The collection seems to indicate that while Japanese and Chinese individuals of 
small or medium size are altogether indistinguishable, large males from the two coun- 
tries exhibit certain small but possibly constant differences. The material at my dis- 
posal is not sufficient to indicate the range of normal variation in adults. 
The specimens from Japan were presented by Dr. S. Yoshida ; they were obtained 
