of the Fishery Board for Scotland. 76 
the bottom. The surface and mid-water gatherings measured respectively 
55 and 6 c.c.’s, and consisted chiefly of Calanus, but Pseudocalanus 
elongatus was moderately frequent in the surface gathering, and Lucheta 
norvegica in that from mid-water ; the bottom horizontal haul contained a 
quantity of mud and was not measured The five vertical hauls collected 
in March were from 15, 30, 45, and 60 fathoms, and one from near the 
bottom (about 70 fathoms). All these gatherings were small, and con- 
tained only a few Calanus, Pseudocalanus, Hucheta, and one or two other 
common forms. 
Aprit.—Hight gatherings, comprising three horizontal and five vertical 
hauls, were collected in April. The horizontal hauls consisted of a surface, 
a mid-water (35 fathoms), and a bottom (70 fathoms) gathering. The 
surface gathering measured only about lc.c.; the other two were moder- 
ately large, and measured 26°5 and 49 c.c.’s respectively. The five 
vertical hauls were from 15, 30, 44, and 60 fathoms, and one from near 
the bottom, and measured 2°5, 5:5, 2°5, 2, and 2 c.c.’s respectively. 
Calanus was the most common species in these gatherings, but Pseudo- 
calanus and Centropages hamatus were moderately frequent, and there 
were also a few others. ‘The following numbers represent approximately 
the proportional numbers of the species observed in the gathering from 30 
fathoms :—Calanus 500, Centropages hamatus 150, Pseudocalanus 100, 
Eucheta 2, Acartia clausi 5, together with a few Hvadne nordmanni, Podon 
leuckarti, larval Balani, Ascidians, and fish eggs. 
May.—KHight gatherings, comprising three horizontal and five vertical 
hauls, were collected in May. The horizontal hauls consisted of a surface, 
a mid-water, and a bottom gathering, as in April. The surface catch was 
a small one, and measured only 2°5 c.c,.’s, in which Calanus and Centro- 
pages were about equally common, and constituted the chief part of the 
haul, but Acartia clausi, Hvadne, and Podon leuckarti were also frequent ; 
other forms observed included a few Sagitta, Oikopleura, and fish eggs. 
The mid-water and bottom hauls measured about 2°5 and 4:5 c.c.’s 
respectively ; their contents did not differ much from the surface haul just 
described, except that it contained a few Hucheta and Parapontella brevt- 
cornis. The vertical hauls were from depths similar to those described 
under April, and measured 3°5, 3, 3, 5, and 7:5 c.c.’s respectively. 
- The species observed in these gatherings did not differ greatly either 
in proportion or kinds from those mentioned above, except that 
Temora longicornis and Anomalocera patersoni occurred in the haul from 
15 fathoms, and Metridia lucens in that from the deep water. 
JuNnE.—-Five gatherings, all vertical hauls, were collected in June. 
They were taken at depths similar to those already described, and 
measured 3, 11:5, 20-5, 25:5, and 55 c.c.’s respectively. The two last hauls 
consisted almost entirely of Calanus. The same organism constituted the 
largest portion of the other gatherings, but Centropages hamatus, Pseudo- 
calanus elongatus, and Acartia clawst were also present in small numbers. 
Avueust.—Five vertical hauls collected in August measured respectively 
about 1°5, 2°5, 6, 50, and 14 c.c.’s. These measurements indicate a con- 
siderable decrease in the number of crustacea when compared with the 
_ June collection. These gatherings consisted almost entirely of Calanus. 
SEPTEMBER.— All the gatherings collected in September were vertical 
hauls. Those from 15, 30, and 45 fathoms were small, and measured only 
1, 1, and 2°5 c.c.’s respectively. The haul from 60 fathoms measured 9°5 
and that from 75 fathoms 25 ¢c.c.’s. Each of these hauls shows apparently 
a still further falling off in the number of pelagic crustacea at this station. 
Calanus formed about half of the catch from 15 fathoms, the other half 
consisting for the most part of Pseudocalanus and Acartia clausi in about 
equal numbers. Calanus formed about 65 per cent. of the catches from 
30 and 45 fathoms, and 75 per cent. of the two from deep water. 
