948 TRANSACTIONS LIVERPOOL BIOLOGICAL SOCIETY. 
Copepoda. 
Date. C.C.  Diatoms. Dinoflag. Adult. Young. Nauplii. 
Oct. 16 (c.) 3°5 1,900 100 16,500 4,500 1,200 
Jy NG aise 3-0 149,300 2,700 2,880 2,100 7,500 
yaeeelig (C3) 3-0 1,200 240 15,455 2,000 560 
SMT. Gee 1-0 30,500 1,400 468 300 3,000 
se REO) CG.) 2-2 1,700 160 14,695 3,000 560 
Ee ie) 0-4 6,200 125 285 150 100 © 
pete) 3-0 1,700 — 11,958 3,000 500 
Se) 0-4 2,675 100 457 100 225 
Se Bn (Ep) 5-0 400 — 15,060 11,000 1,100 
gee?) 0-3 1,100 — 255 75 350 
so eae (C2) 4-0 600 _ 14,240 7,000 200 
reer eee 0-5 2,245 100 94] 625 725 
Ans) 4-5 1,000 100 16,345 4,500 1,400 
Ved? 40) 0-5 3,775 425 525 325 1,000 
A eC) 5-5 5,900 200 15,100 3 400 100 
“Ae ete, 0-75 3,270 120 1,077 550 300 
Peo CC: 5-5 2,200 500 23,780 11,000 500 
wae 0) 0-75 2,700 150 905 990 710 
Nov. 2 (c.) 4-0 3,300 —- 19,065 18,600 | 300 
oe es is 0-8 6,830 390 899 930 300 
ante) 3-8 4,500 — 3,760 3,650 150 
Fe ee ie se 0-2 7,730 570 305 60 660 
oy On (e.) 3°9 5,800 — 5,340 3,300 100 
ie Ge 0-2 1,670 60 160 1,500 1,200 
at ke (C.) 2:6 7,575 75 2,794. 1,400 150 
oo MS aeiieserc 0-4 6,500 1,100 301 200 1,250 
yo) (C.) 1-8 5,120 240 4,286 950 160 
sy) 0-1 1,860 390 221 30 490 
Dec. 4 (c.) 1:8 14,500 — 3,925 1,800 300 
bear Wl 0-1 1,230 510 94 30 150 
eka (ex) 23 5,600 100 5,650 1,100 100 
a LD 0-1 210 270 12] 30 60 
pa nee: -(@:)) ro 9,030 — 5,122 1,700 100 
eae 0-2 330 240 261 270 240 
30 (c.) 32 5,700 = 7,650 2,500 100 
30 0-8 (gathering accidentally lost). 
In considering the totals of the plankton catches in 
Port Erin Bay during 1908, we find that they are low in 
January and February, averaging only 0°6 c.c. per haul. 
The first rise is on March 17th, when the amount increases 
to 3c.c. per haul, and the averages remain very much at 
that level until about the middle of April, and then rise 
rapidly to 23°5c¢.c. on April 18th. After that there is a 
drop, and the amounts vary around 10 c.c. for about a 
menth, and then run up on May 20th to 15 c.c.; on May 
28th, to 17°75 c.c.; on May 30th, to 15°53 c.c. They then 
drop to 3°25 c.c., and vary between that and 9°5 c.c. (22 cc. 
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