932 
THE VOYAGE OF H.M.S. CHALLENGER. 
J.M’AX. 
Statiox 
and other Annelid larvae, Planarians and larvae, Evadne, Daphnia, Copepods, Cirriped 
larvae, Ampliipods, Isopods, Zoeae, small Gasteropods and Lamellibranchs, Cyphonautes, 
A ppendicularia. 
On April 13, in Yokohama Bay, the tow-nets came up crammed with masses of small 
Diatoms, in greater abundance than previously observed during the cruise, among which 
were noticed a few specimens of Peridinium, Infusorians, and Medusae. On June 6, 
after the ship returned to Yokohama from a visit to the Inland Sea, there were relatively 
very few Diatoms in the surface tow-nets, which contained, however, immense nun^ers 
of small Acanthometrae, larvae of Memhranipora, small shells, Peridinium, Infusorians, 
Copepods, and Cirriped larvae. Noctiluca was present in all the hauls of the tow-net in 
the bays and harbours of Japan. 
Willemoes-Suhm writes ; “ I studied every day the development of Polygordius, from 
the larva of which I got the worm in a globe ; I got also Cyphonautes, the larva of a 
Memhranipora, and Evadne. Annelid larvae were common, and so was a Pluteus, 
Cirriped larvae (Nauplius and Cypris stages) were abundant, and next came Copepods, 
Zoeae, and small shells with velum.” 
Station 237 (Sounding 379), Yokohama to Sandwich Islands (see Charts 35 and 36, 
and Diagram 17). 
June 17, 1875.; lat. 34“ 37' N., long. 140“ 32' E. 
Temperature of air at noon, 68“'8 ; mean for the day, 69“'5. 
Temperature of water : — 
Surface, . 
10 fathoms, 
20 
ti 
30 
ti 
40 
tt 
50 
tt 
60 
it 
70 
it 
80 
it 
90 
it 
100 
tt 
125 
it 
150 
tt 
175 
it 
200 
tt 
225 
If 
730 
73-4 ‘ 
72-0 
70-5 
690 
67-5 
66-1 
650 
64-0 
63-2 
62-4 
59-8 
57 0 
54-6 
520 
500 
250 fathoms, 
275 
300 
400 
500 
600 
700 
800 
900 
1000 
1100 
1200 
1300 
1400 
1500 
It 
Bottom, 
48-0 
46-0 
44-1 
40-8 
38-8 
37-7 
37-0 
36-6 
36-4 
36-2 
360 
35-8 
35*6 
35-4 
35-3 
35-3 
