50 
Frequency Distribution of Length of Mouth 
Length of mouth in mm. 
Male 
Female 
Island 
lake 
Gods 
lake 
Oxford 
House 
Island 
lake 
Gods 
lake 
> 
iDULTS (agei 
) 20 TO 59 Yi 
:ars) 
36 
2 
39 
0 
42 
0 
45 
0 
48 
6 
51 
3 
2 
18 
2 
54 
8 
2 
7 
29 
5 
57 
17 
2 
10 
27 
11 
60 
17 
8 
25 
15 
7 
63 
16 
4 
9 
1 
1 
66 
6 
0 
2 
1 
1 
69 
0 
0 
1 
72 
1 
1 
Mean 
60-6 
65-6 
60-1 
55-8 
58-3 
±416 
±6-62 
±3-33 
±4-68 
±3-30 
Em 
±0-34 
±1-08 
±0-30 
±0-32 
±0-43 
V 
6-86 
1009 
5-54 
8-39 
5-66 
N 
68 
17 
55 
100 
27 
adults (aged 60 YEAHS AND OVEb) 
Mean 
58-2 
70 0 
63-5 
56-5 
63-3 
(T 
±3-42 
+ 0-64 
±4-47 
±0-75 
7-92 
±3-40 
±0-76 
5-37 
9 
V 
5-88 
N 
13 
7 
4 
16 
Distribution of Length of Mouth According to Age 
Male 
Female 
Age 
Island 
Gods 
Oxford 
Island 
Gods 
Oxford 
in years 
lake 
lake 
House 
lake 
lake 
House 
No. 
Mean 
No. 
Mean 
No. 
Mean 
No. 
Mean 
No. 
Mean 
No. 
Mean 
10.... 
2 
47-0 
1 
48-0 
1 
50 
11 
0 
1 
530 
1 
52 
12 
2 
52-0 
1 
57 0 
1 
51 
13 
8 
52-3 
2 
53 0 
4 
49-8 
2 
50 
14 
2 
530 
3 
500 
1 
49-0 
3 
50 
15 
1 
57-0 
2 
540 
4 
530 
1 
550 
4 
50 
16 
3 
56-0 
1 
560 
4 
52-0 
3 
560 
1 
45 
17 
5 
55-4 
3 
54-0 
5 
53-4 
0 
18 
3 
60 0 
2 
590 
5 
560 
0 
19... 
3 
570 
3 
560 
8 
53-9 
2 
52 
20-59 
68 
606 
17 
65-6 
55 
60- 1 
100 
55-8 
27 
58-3 
60+ 
13 
58-2 
7 
700 
4 
63-5 
16 
56-5 
9 
63-3 
