50 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
Plankton work has figured still more largely than 
last year, and more of the Curator’s time has been devoted 
to it. In this connection it may be mentioned that the 
Ctenophoran Pleurobrachia vomiformis was exceptionally 
abundant during the prevalence of hot weather at the 
end of June and the beginning of July (see fig. 10). 
I have very little of a faunistic character to record. 
Uhe sea-hare, Aplysta punctata, was exceptionally 
common in the rock pools in spring and early summer, 
and two divers in the employ of the Harbour Commis- 
sioners, who examined the moorings of the buoy at the 
end of the breakwater on July 3rd, reported to me that 
; 
Fig. 11. Our local ‘‘ Octopus.’ 
sea-hares were abundant on the sandy bottom around 
the moormgs. The largest specimen I have seen of our 
local Octopus, H/edone cirrosa (fig. 11), was brought in by 
a fisherman in March. Its dimensions, taken immediately 
after death, were as follows:—Total length, 22 inches; 
length of left inner arm, 14 inches; length of body from 
between the eyes to the apex, 7 inches; width of head 
between the eyes, 3 inches. | 
As in former years, numerous ephyre of Aurelia 
aurita appeared in the spawning pond in January and 
February, and | took the opportunity of counting the 
