Crustacea Decapoda and Stomatopoda. 
283 
females, it is usually shorter and in rare cases is less than one and a half times the 
length of the carapace. The dorsal teeth, excluding that at the apex, vary in number 
from 4 to 10 (usually 5 to 9). In the specimens from Tinnevelly the number appears to 
be decidedly lower than in those from other localities, while de Man has recorded ex- 
amples with an exceptionally high number from the Bari R. in Flores. There is, 
almost without exception, a single subapical dorsal tooth : I have seen single speci- 
mens with 2 and 3 teeth in this position. 
The ventral teeth of the rostrum vary still more, from 17 to 42, the majority hav- 
ing from 23 to 32. Here again the specimens from Tinnevelly seem to have, on the 
average, a lower number than the others, but the material is not sufficiently abundant 
for accurate determination of the point. 
The numbers of teeth in specimens from the five principal localities are as 
follows : — 
0 +J 
Number 
OF SPECIMENS. 
<U +-) 
nvor 
inevi 
llane 
■3 
cd 
-M 
CJ 
> 
P4 
4 
5 
5 
23 
6 
6 
I 
19 
II 
I 
7 
2 
2 
3 
18 
2 
8 
6 
2 
15 
7 
9 
3 
3 
2 
10 
2 
I 
I 
Number of 
ventral teeth. 
Number 
OF SPECIMENS. 
Garia. 
Sanvordem. 
Tinnevelly. 
Vellaney. 
Patani. 
17 
I 
19 
I 
20 
2 
I 
21 
I 
I 
22 
3 
I 
I 
23 
I 
7 
3 
I 
24 
8 
I 
25 
I 
6 
5 
I 
26 
I 
5 
3 
2 
27 
3 
I 
6 
4 
3 
28 
3 
II 
2 
29 
2 
6 
30 
2 
2 
I 
I 
31 
I 
2 
3 
32 
3 
4 
33 
2 
34 
3 
35 
I 
I 
36 
I 
37 
I 
38 
I 
41 
I 
I 
42 
j 
The antennal scale is from 3f to 4 times as long as wide. The lateral process of 
the antennular peduncle is short, not reaching the end of the basal segment. The 
second segment is about twice as long as broad. 
In the third maxillipedes the epipod is long and straight ; the terminal segment 
bears from 8 to 10 spines. 
The carpus of the first peraeopods is from if to 2 times as long as wide and is 
