Edward T. Browne 
93 
1000 Large Adults taken in June, 1898. The Range and Numerical 
Variation of their Tentaculocysts. {Series B.) 
About a month later, on May 27th, and June 2nd, we again visited Saltash for 
the purpose of collecting a supply of large adult specimens, sufficient to ensure the 
possession of 1000 specimens in good condition. We tried, at hrst, to catch them 
with a large trawl-net, which was kept expanded by the tide from the Laboratory 
steamboat " Busy Bee " at anchor. This method had to be abandoned as the 
Aurelia got crushed in the net and most of them were found badly torn and 
damaged. To obtain specimens in perfect condition we found that catching them, 
one by one, in a hand-net, as they floated past the steamer, was the best method. 
The specimens were taken within two feet of the surface ; the river being too 
muddy to see anything at a greater depth. I feel much indebted to my friends, 
Mr E. W. L. Holt, Mr W. I. Beaumont, and Mr L. W. Byrne, for their kindness in 
catching nearly all the specimens ; my share of the work was the preservation. 
This series of specimens ranged from 20 mm. to 95 mm. in diameter, and most 
of the larger ones carried planulae in the pouches on the oral arms, showing that 
they had reached full maturity. The majority of the specimens were from 40 mm. 
to 65 mm. in diameter. 
The numerical variation of the tentaculocysts is given in Table III. The range 
of variation is the same as that of the small adults collected in April, but the 
percentage of specimens showing a variation is greater, 22'9 p.c, being 2'7 p.c. 
more than in the small adults. 
TABLE IlL 
The Numerical Variation of the Tentacalocgsts of 1000 Adults, collected in June, 1898. 
Diameter 
of the U 
mbrella in 
Millimetres 
Total 
Per- 
centage 
Up to 
5 
10 
15 
20 
25 
30 
35 
Jfi 
50 
55 
60 
65 
70 
75 
80 
85 
90 
95 
100 
1 
1 
2 
0-2 
03 
>^ 
5 
1 
1 
0-1 
o 
^ 
6 
1 
3 
1 
1 
1 
1 
8 
0-8 
7 
1 
1 
3 
11 
10 
2 
4 
5 
3 
5 
1 
1 
47 
4-7 
o 
a 
8 
(normal) 
4 
11 
27 
39 
97 
128 
138 
111 
83 
57 
37 
22 
9 
7 
1 
771 
77-1 
a 
9 
1 
3 
2 
4 
13 
12 
12 
8 
4 
6 
6 
1 
2 
1 
75 
7-5 
10 
3 
7 
7 
14 
9 
7 
4 
1 
62 
5-2 
O 
11 
1 
1 
1 
1 
4 
2 
3 
5 
1 
19 
1-9 
Ui 
12 
1 
2 
5 
1 
3 
1 
2 
1 
2 
18 
1-8 
0) 
13 
2 
1 
1 
1 
.5 
0-5 
a 
U 
1 
1 
01 
15 
1 
1 
0-1 
Totals 
1 
.5 
16 
33 
53 
137 
168 
172 
139 
107 
73 
50 
25 
10 
9 
2 
1000 
100 p.c. 
