304 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
CIRRIPEDE LARVAE IN 1908. 
The Nauplius stage of Balanus occurs for the first 
time on February 13th and again on March 11th. From 
this time onwards the Nauplii occur in increasing 
numbers in every catch until their maximum of 30,000 1s 
reached on April 18th. From this date the numbers keep 
between SUO and 5,500 till April 29th. But three catches 
of the coarse net show higher numbers, the highest being 
9,000 on April 22nd. The numbers taken on April 29th 
were 75 in the fine net and 6,500 in the coarse. None 
were taken after that date. ‘The above statement refers 
to Port Erin Bay. In the open sea, on the whole, fewer 
Naupliu were taken, and the maximum appears to be a 
little later. On April 29th, quite large catches were 
made in the open sea (15,000 in weight net at Stat. IIT), 
so that this date cannct safely be taken as the time of 
their actual disappearance. The ‘“‘Cypris” stage of 
Balanus appears for the first time in the bay on April 
17th (10 in fine net, 15 in coarse), and one or two are 
taken occasionally from that time onwards up to the 
disappearance of the Nauplu The Cypris forms are then 
taken in slightly larger quantities (6, 20, 10, 9, 6, 5) until 
May 28th, which is the last date on which any Cirripede 
larvae were taken. In the open sea very much the same 
results are found, the largest takes being on April 16th 
(20 in fine net) and on April 29th (42 im coarse net and 
16 in fine). This is probably not the real maximum. It 
is more reasonable to suppose that the maximum is some 
time in May, as in the case of the same forms inside the 
bay. 
On comparing these 1908 results with those of 1907, 
we see that this year the Naupli appeared in the bay 
gatherings about a week earlier than in 1907, but the 
