162 49° 3. 7&8? 39" W..Jan.. 12, 
Depth of tow,m. 
Temperature, C. 
| Salinity,,0/om 
ee of FORA ems 
Acartia, ‘danae 
negligens 
|Acrocalanus gracilis 
monachus 
ketideus armatus 
\Calanus propingquus 
| Candacia Simplex: 
‘Canthocalanus pauper 
‘Clausocalanus arcuicornis 
Clytemnestra rostrata 
Corycaeus crassiusculus 
| pumillus 
speciosus 
typicus 
Eucalanus attenuatus 
crassus 
| elongatus 
Euchnaeta marina 
'Euchirella: brevis 
f purenra: 
| Farranula carinata 
gibbula 
rostrata 
|Haloptilus longicornis 
Heterornabddus papillager 
spinifrons 
Phaenna spinifera : 
REMARKS.. 
grees in the 100 meters 
surface but diminished a little in the two lower 
STtATICGS &F 
4 ie; 
‘aes (54 species) 
Bottom depth 3657 m. 
ST ot 
HF OwmD 
os 
Dag hee ae rere oee sharers Bs ee 
Amy oO ESL Ne SN RN TA EE IEA 
100 |Depth of tow,m 
tigi 
6H 
C 
~ ‘geolecithricella minor 
RONHORFH MMH 
oo MA hg HT Re Smt RINE A LAT Her FL 
[21.1/17. 3/1445) Density,. OtP. 
35-2) 35.2 
4al 32 
Hydrogen ion pH 
jLength of pict asada s 
‘Lucicutia. ‘elaust 
flavicornis 
‘Macrosetella gracilis 
\Mecynocera clausi 
‘Metridia brevicauda 
lucens: 
‘Microsetella norvegica 
rosea 
‘Neocalanus gracilis 
/Oithona attenuata. 
plumifera 
Similis 
spinirostris 
‘Oithonina nana 
‘Oncaea media 
minuta 
venusta 
iParacalanus parvus 
pygmaeus 
‘Pseudocalanus minutus: 
Sapophirina nagusta 
auronitens 
nigromaculata 
Calocalanus plumulosus 
Undinula darwini 
The surface temperature was higher but it fell nearly 
Pleuromamma gracilis | 2 
ee ee ooo 
seven de- 
the salinity and hydrogen ion were high at the 
depths« Eignteen spe- 
cies were present at the surface, thirty in the 50-meter tow and thirty-six 
in the 100-meter tow. 
single tow and ten were present in all three towse 
Thirty-four species (63%) were each confined to a 
Three species alone 
were recorded as abundant and nearly half of the records were numerais,, fif- 
teen of them each a single specimen. 
found only in the 100-—meter 
the Corycaeus speciess. 
present at the surface, 
put 
tow + and the same was true of 
Aetideus, Haloptilus and Metridia were 
all but one of 
On the other hand each of the Oncaea species was 
two 
of them were more abundant in the deeper towse 

