167 = 
STATION 9 
(74 species) 
April 24, 1929 
170° 56° W. 
Bottom depth 4298 m.. 
oot 
or TENET SSeS SPS CR TE PCR A OST tn 
Depth of tow,m 
Temperature ,C.. 
} (, 7 > ee 
a | 3 de ew 
| Salinity 
eee PR ee 
1100. |Depth of “tow,ms. 
‘|28. SiDensity, OtP. 
y, 0/oo 
| Volume of tow, 
PLURAL Fil cota 
em> 
;Acrocalanus gibver 
gracilis 
longicornis 
| monacnus 
| Sevlecithricella Dropinqua 
Calanus minor 
| Calocalanus pavo 
\Candacia aethiopica 
bispinosa 
norvegica 
simplex: 
truncata 
Cantnocalanus pauper 
Centrovases calaninus 
‘Clausocalanus arcuicornis 
'Ciytemnestra rostrata 
Copilia denticulata 
quadrata 
sb 09 
18 anglicus 
px ane i 
crassiusculus 
dubius 
furcifer 
Limbatus 
Longistylis 
ovalis 
pumilus 
speciosus 
*“Eucalanus attenuatus 
erassue 
| elongatus 
'Buchaeta marina 
‘Bucnirellea brevis 
| Farranula carinata 
| curta 
givbula 
(BAIR Mime 
CO ryCae' 
Oe Se ee eee ent ee i Te ed Oe err 
REMARKS « 
AAS SAE SAS ROR AA a TENT ADSI RIE GAL re eS LSTA rine ted ER OMRON NA FA 
| 
AON CR 
OraQAN 
eeHS 
© © 
i 
; 
i 
' 
R$ Wa to 
4H FOHRAHHHWHW YY 
55. 1 Hydrogen ion pH 
80; Gen eth of tow, miles 
seme Mer sirmerieanensaai oan seins iaeiniiihisicediaaiocbconatne 
pacrancke eoeteath 
Haloptilus 
tuobockila 
fC 
aculeata 
attenuata ,%-SP: 
squilil imana 
iTucicutia clausi 
flavicornis 
I wacrosetella gracilis 
I[Mecynocera clausi 
|Megacalanus longicor 
iMicrocalanus pusillus 
. pygmaeus 
' |Microsetella rosea 
| Neocalanus gracilis 
robustior 
| eeauonn fallax 
plumifera 
| setiger 
similis 
spinirostris 
'@itucorina nana 
/Oncaea curta 
media 
minuta 
similis 
tenella 
) venusta 
‘Paracalanus parvus 
Pseudocalanus minutus 
Rhincalanus cornutus 
‘Sapphirirna auronitens 
| metallina 
nigromaculata 
ete a eee ems tam ee 
longicornis 
nis 
Scolecithnricella minor 
Scolecithrix danae 
Undinula darwini 
Vettoria granulose 
eased 
aig FOP a LOD Oe ee arr 
oh nme erie camena ae dh 
cana tee 
ANA RE LOL LET ATA ECCLES ornare 
- 
a) 
NeHOQOAQARMNAO Rr GO 
MOQ FF 
2 Bg Ty ON St snr ts a eel ey Png UN SE 
QM MWD 
NF, MONE W 
Me O fo 
mH 
The temperature was high and diminished nearly one degree s while 
the salinity increased nalf a point, and the hydrogen ion remained practi- 
cally the same+ Fifty-three svecies were taken in the 5O0-meter tow and 
rirty-four species in the 100-meter tow, an exceptionally even depth dis- 
tribution. Forty-one species (55%) were present in one tow and absent 
towse 
from. the other,while thirty-three species were found in both 

