156 TRANSACTIONS LIVEEPOOL BIOLOGICAL SOCIETY. 



Pseudocalanus. Isias was present in many gatherings, 

 and occasionally abundant. Oithona appears to be rare 

 in spring, appearing in summer and persisting through 

 autumn and winter. 



EUPHATJSIACEA AND SCHIZOPODA. 



I have little to add to the records I gave last year, 

 except that this year's records enable me to extend the 

 distribution of Nyctiphcmes couchii in our area. In 

 addition to Carnarvon Bay and Red Wharf Bay, in which 

 it was noted last year, it has this year also occurred in 

 Colwyn Bay, off Nelson Buoy, between the Selker and 

 Bahama Lightships, at Bahama Bank, and 25 miles 

 W.N.W. from Piel Gas Buoy. Hence it appears to be 

 generally distributed throughout our district. 



Cladoceea. 



Evadne and Podon have both been rather rare during 

 the year. The former only occurred once in the vertical 

 nets, at Station 5, on May 6th, the latter also once, at 

 Station 5, on September 9th. Of the two, Podon was the 

 more widely distributed. It was first observed in May, 

 and persisted until September, being present at various 

 times in Cardigan Bay, Carnarvon Bay, Red Wharf Bay, 

 Mersey Estuary, and Nelson Buoy. It was never noted 

 further North. Evadne, apart from Station 5, was only 

 present in July and August. It was noted in Cardigan 

 Bay, Mersey Estuary, and off St. Bees Head, being thus 

 apparently more local than Podon. 



