ee 
STATION 70 
po 13° 36° s. 77° 54° Ww. Jan. 13% i929 
Bottom depth tne Ine 
Depth of tow.m. 0 di 50 |100 |pepth or tow.m. 0 | 50 !z00 | 
|Temperature,(. 21.2 /}15.4 |12.5/Density,. OtP.. 24, 5125.8 126.3) 
‘Salinity, o/oo Bex | 3.9 2 | a8 7/| Hy drogen ion pH 8.051 7438 | Ts 68 
|Volume of tow, em? 64 | 32| 128\tength of tow,miles | 1.0) 1o2)} 12] 
Fl 
; 
——— Aner er natahe ARN tah Na nt cmd poeta 2 sveeamesasunnemianiianininains j.. mripeennane natoopaianenttigeee 
BTS ibe Rass Han" eek an ‘ “ an soem mera sitesi } sss sn = a on 
| Acartia danae | i : |uteroseteiia 1 norvegica ee : 
iy 
| 
Na eC neaS Uinta r nod.t A nein 
acim aiatemaatnierniaes Loner 
* 1 IO ee Nt NA ee RR SR SR ML AL come pn bee GEE On cae ee 
i 
' 
Aetideus armatus Neocalanus gracilis 
|Calanus propinquus 
| Candacia norvegica 
| pachydactyla 
'Clytemnestra rostrata 
| scutellata 'Oneaea curta: 
Corycaeus crassiusculus | media 
| prumilus TAS 5 | minuta 
| robustus | | similis 
speciosus venusta 
| Eucalanus attenuatus Paracalanus parvus 
crassus Pseeudocalanus minutus 
. elongatus ‘Sapphirina angusta 
Euchnaeta marina | auronitens 
'Euchirella intermedia nigromaculata 
Haloptilus longicornis | opalina. 
oxycephalus Scolecithricella minor 
Macrosetella gracilis ae OGRA RRND. EaeeLgeae 
| Mecynocera clausi Canthoeal 
H 2a an TAO Www 2 ’ 
Ra ALL Gadd? 4 MoOUWe r 
f 
Acrocalanus gracilis ome rosea rf 
2 
a 
Oithnona attenuata 
plumifera 
similis 
 ektnoninn nana 
RRA er acta ae TL RR a I REE AT 
aii aH 
FL RES. 
Eh pete Dh 
(MUWHERPH PP PW 
REMARKS «. The surface temperature was again high but dropoed almost nine de- 
grees (41%) in the 100 meters; the salinity was high and constant, the hydro- 
gen ion diminished in the two deeper towse Thirteen species were recorded 
at the surface, twenty-one in the 50-meter tow and thirty-two in the 100~me- 
ter tow. Twenty-six species (62%) were each restricted to a single tow and 
elgnt were present in all three tows. The Eucalanus species were especially 
abundant in the 100-meter tow, and Calanus in all three tows,more especial- 
ly at the surfaces Numerals were again very much in evidence in the rec- 
ords, and fifteen of them wore single specimens. Two species of Corycaeus 
were present at the surface, one of them in abundance, but the other two 
species were found only in the deepest tow»s-Oncaea was well divided among 
the three towse The four Sapphirina svecies each comprised a single spe- 
cimen taken in the 50 meter tow. 

