298 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
Form 51, part of which is quoted here, shows a similar 
case for the Dinoflagellata—-several species being well 
represented in every haul. ‘This series includes a very 
high number, 400,000, of Ceratiwm tripos obtained in the 
new surface net—a far greater quantity than anything 
obtained last year; even the 16,300 and the 19,500 and 
20,000 are exceptionally high numbers. 
51.—Station III., August 12 (**2 miles to the 5. W.) 
Net used. Surface. | ‘‘ New.’’ |‘‘Pulley’’} Hensen. | Nansen. | Weight. *«New.’’ *Surface, 
Ceratium furea ......... 1,700 | 2,000 450 825 1,200 3,000 | 300 
9 PUSTISR Ee eRe 4,600 | 2,000 1,725 2,700 1,900 3,900 400 | 
s RIOR. a. cee 16,300 400,000 | 7,500 | 3,900 | 3,500 19,500 | 20,000 
Peridinium sp. ......... 300 | 5,500} 300] 225 100: 1,500 700 
ee ope = a $e $$ 
We shall now take out some of the chief species of 
Copepoda, Cladocera, worms, &c., and briefly summarise 
their occurrence during the year for comparison with 1907. 
Common Corrropna tn 1908. 
Pseudocalanus elongatus is very generally distributed 
throughout the year, and also throughout the nets at those 
times of the year when different nets were used. The 
numbers are occasionally high; for example, in the latter 
half of March we find 2,400 and 2,500 specimens in the 
surface net in the bay on two occasions, and early in April 
we find 2,750 in the “weight” net at Station III, and 
1,000 on several occasions during that month in the same 
net. The highest number in the bay during April 1s 
2,250. The numbers run lower during May, June and 
July, but in August we again find hauls of 1,000 and 
.2,000 on occasions in the “weight” net. In the middle 
of September there is an increase, and the coarse surface 
‘net took 10,000 in the bay on the 14th and 18,000 in the 
