94 Variatio7i in Aurelia Aurita 
The Combination of the Small and Large Adults. 
The result of the combination of the small adults (Table II.) and the large 
adults (Table III.) is shown in Table IV. which is illustrated by a curve (1) showing 
the frequency of the tentaculocysts. 
This combination gives a grand total of 3000 specimens belonging to the same 
race, and it shows that 21' I p.c. have more or less than the normal number of 
tentaculocysts. I think that 21 p.c. may be regarded as the normal amount of 
variability of the Tamar race. 
The table also shows that 4'9 p.c. of the specimens have less (4 to 7) than the 
normal number of tentaculocysts, and that 16"1 p.c. have an excess (9 to 15) of the 
normal number. 
TABLE IV. 
The Numerical Variation of the Tentaculocysts of ;30U0 Adults. 
{Tables II. and III. combined.) 
Diameter of the Umbrella in Millimetres 
Up to 
5 
10 
15 
30 
25 
30 
35 
40 
i5 
50 
55 
60 
65 
70 
75 
80 
85 
90 
95 
100 
-♦^ 
1 
1 
3 
0-1 
t>» 
5 
2 
1 
3 
0-1 
o 
o 
6 
3 
2 
4 
1 
2 
1 
3 
1 
1 
1 
1 
20 
0-67 
3 
7 
13 
20 
29 
8 
6 
1 
3 
11 
10 
2 
4 
5 
3 
5 
1 
1 
122 
4-07 
u 
cS 
8 
270 
442 
466 
284 
113 
56 
46 
97 
128 
138 
111 
83 
57 
37 
22 
9 
7 
1 
2.367 
78-9 
a 
9 
17 
30 
38 
18 
11 
6 
5 
13 
12 
8 
4 
6 
6 
1 
2 
1 
190 
6-33 
10 
15 
28 
23 
18 
1 
3 
14 
9 
7 
4 
1 
143 
4-77 
O 
11 
17 
19 
18 
12 
I 
2 
2 
\ 
I 
2 
3 
5 
1 
91 
303 
t4 
12 
3 
6 
4 
8 
3 
2 
2 
5 
1 
3 
1 
2 
1 
2 
43 
1-43 
13 
3 
2 
1 
1 
2 
1 
1 
1 
12 
0-4 
a 
U 
1 
1 
1 
3 
01 
15 
1 
1 
1 
3 
0-1 
Totals 
344 
550 
584 
351 147 
70 
62 
137 
168 
172 
139 
107 
73 
50 
25 
10 
9 
2 
3000 
100 
Total 
Per- 
centage 
