300 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 



latter part of March or May to. October. The present year 

 seems to have been earlier than its two predecessors in 

 respect of this group, as the following table shows : — 



1907. 



Evadne nordmanni March 29 to September 20 



Podon intermedium March 26 to October 9 



1908. 



Evadne nordmanni April 11 to August 27 



Podon intermedium May 26 to October 24 



1909. 



Eoadne -nordmanni March 6 to September 21 



Podon intermedium March 15 to October 2 



As to the details of the present year, Evadne appears 

 first in the Bay on March 6th, and the numbers remain 

 small in March and April, but rise rapidly into the 

 thousands in May, reaching 12,000, in the Bay, on 

 May 24th, and 13,000 on the 27th, and 12,000 in the coarse 

 surface net outside the Bay on May 24th — another case 

 like those quoted in our previous reports of the marked 

 equality in hauls indicating an even distribution. Evadne 

 remains fairly abundant in June and July. After the 

 first week in August it only occurs on three occasions, the 

 last haul being 25 in the Bay^on September 21st. The 

 maximum in '08 was 12,500, on June 10th. In '07 the 

 numbers were much lower throughout. 



Podon occurs first in the Bay on March 15th, and the 

 numbers remain small until May. The maximum in the 

 Bay is G50, on May 8th. In the sea outside it readies 

 1,000, on May 24th. It is much more constant in the 

 later months than Evadne, being present mostly in 

 hundreds and tens, and with but few breaks, until 

 October 2nd, when 80 were taken by the coarse net in the 

 Bay. 



