rae, one 
STATION 67 
57° Ss. 82° 15% W. Jan. 8,. 1929 Naked td sailed 
Bottom depth 1089 m. 
MS SRE RRS EE SP ty i IN 
SATE i SRE! Eee Ree OR Ee | fe Lets ae ee taco 
‘Depth of tow,m. Fe 0 | /106 Me ee 50 | 100: 
| 
l 
| Temperature ,C. 
Salinity,.0o/oo 
| Volume of tow, em? 
RA By 5 116.2|Density, OtP.. 24.9 25.4) 25.8) 
4.9 34.7/|/34.6| Hydrogen ion pH S.11 B.11| 08) 
32) Aa) 32|Length of tow, miles | 0.3 0.3) 0-3) 
oe 
. ie Rr 
MHOAWoh4 FO H 
e 
se en NE ST tt fe 
l aeirt ia dani a 
| negligens i & 
_Acrocalanus gibber | robustior 
| gracilis poe a tenuicornis 
| Candacia truncata | | _ 2 |O0ithona attenuata 
|CYausocalanus arcuicornis | | | fallax 
furcatus: : bY | | setigera 
| Clytemnestra rostrata ; ey similis 
scutellata | one ay spinirostris 
| Corycaeus agilis | | ' Oncaea curta 
| crassiusculus : | minuta 
ovalis 2 | | | venusta 
longistylis | | 'Paracalanus parvus 
pacificus | | | | Phaenna spinifera 
typicus : a | Pleuromamma gracilis 
‘Farranula carinata | | Pontellina plumata 
gibbula | | Pgeudocalanus minutus 
rostrata | | | ' Sapphirina auronitens 
Haloptilus longicornis | | . | nigromaculata 
JZucicutia flavicornis 2 oe. | Scolecitnrix danae 
Mecynocera clausi | ee Undinula darwini 
‘Microsetella rosea | | 2 |Sapphirina metallina 
|Microcalanus pusillus 
h : F 
+ 
arenes TAe NNER RONEN FASO RDA NSEAD , 0 ersiinahaie , é endbrnressornensensnttote _ M Fan . “or He ema sree SLIM WN PNT ANUP MT PM AN TIEN a 
r | ae ie efferata | 
| | | Neocalanus gracilis 
ASE idem amar snsain! 
re ere Sa: 
eR me Se A Comme WE 
Seley ePaper ream ee 
MPMrrhrHerh& 
We aN NOR nig et a AAR AIST ERR ED SES ELLE AS LEE BNE IIA 
HHO 
REMARKS... The temperature was moderate at the surface and fell three degree: 
in the 100 meters’ the salinity and hydrogen ion remaining constant.. Four- 
teen species were present at the surface, twenty+two in the 50-meter tow and 
thirty-five in the 100-meter tow. Twenty-five species (55%) were each con- 
fined to a single tow while six species were found in all three towse 
Corycaeus and Oithona presented many species, but comparatively few specimens, 
and this paucity in numbers was shared by nearly all the other genera since.. 
only two of them were recorded as abundant Microsetella wags here found 
only in the 100-meter tow althougn it is usually a surface form. 

