Of THE KSGLISH LAKE DISTRICT. 
421 
Table i.— Composition of tlie Plankton of Ennerdale, Wastwater, and 
Coniston. 
The figures give numbers of individuals of each species per cent, of whole number counted. 
Surface. 
Ennf.hdalk Watkr. 
Sept. 27-30, 1922. 
Sicki cri/sfallina 
Holopedium gibberum . . . 
Bythotrephes luvyimanvs . 
Bosmina obtusirostris . . . 
Diaptomus gracilis 
Limnocttlanus maci-urux . 
69-4 
23-8 
•78 
7-8 
81-3 
At MghtSinfup.e 
4-2 
20-2 
1-5 
16-2 
58'2 
•37 
26-1 
10-4 
49^2 
13 
Q 
5 
2^3 
32-1 
1^15 
16 
47-1 
33-6 
17^2 
Deep Water 
7 
8 
9 
— 
— 
12-6 
196 
.5-6 
6-4 
•89 
4'67 
■7 
— 
— 
4(3-8 
46^4 
34^6 
33-4 
- 
33 
.54-3 
^■2 
50'8 
36-9 
Wastwater 
Oct. 1, 1922. 
Bosmina obtusirostris . . . 
Bythotrephes loiiyiiiiaiiKS . 
Leptodora kindti 
Diaptonnis gracilis 
Cyclops abyssorwn 
Coniston. 
Oct. 2, 1922. 
Daplinia yaleata 
Bythotrephes longimanvs . 
Leptodora kindti 
Diaptomus gracilis 
Cyclop)S ahyssorum 
Surface. 
52-5 
7^05 
•64 
21^7 
17'9 
80 feet. 
40 
4-2 
•52 
2.5-2 
30 
100 feet. : 120 feet. 
40^2 ! 48-6 
5-88 9-0 
•98 I 2-0.:; 
27-4 
12^3 
28^4 
24'5 
Surface. Surface. 
Fine Net. Coarse Net. 50-80 feet. 
Below 
100 feet. 
4^9 
37.3 
57-7 
48 '9 
+ 
r4 
1^86 
2-5 
+ 
o^e 
3-9 
93 
47^2 
21 
28^1 
2^09 
14 
11-4 
16-4 
