LISTS OF SPECIES BY STATIONS 



167 



Station 159 

 November 11, 1929; 9° 24' S, 159° 01' W; bottom depth, 5545 m; 76 species 



Depth of tow, m 

 Temperature, °C 

 Salinity, 0/00 

 \olume of tow, cm' 



Acartia clausii 



danae 



longiremis 



negligens 



Aetideus armatus 



Amallothrix propinqua 



Calanus minor 



Calocalanus pavo 



plumulosus 



styliremis 



Candacia aethiopica 



bispinosa 



norvegica 



simplex 



Canthocalanus pauper 



Centropages calaninus 



elongatus 



furcatus 



Clausocalanus arcuicornis 



furcatus 



Clytemnestra rostrata 



scutellata 



Corycaeus agilis 



catus 



crassiusculus 



flaccus 



lautus 



ovalis 



pacificus 



robustus 



speciosus 



Danodes plumata, n, gen. and n. sp. 

 Eucalanus attenuatus 



elongatus 



Euchaeta marina 



Euchirella brevis 



curticauda 



Farranula carinata 



f 

 4 



1 



a 



r9 



f 



c 



a 



c 



Farranula curta 



gibbula 



rostrata 



Haloptilus longicornis. . . . 



spiniceps 



Heterorhabdus spinifrons. 

 Labidocera detruncata. . . 



Lucicutia flavicornis 



Macrosetella gracilis 



Mecynocera clausi 



Microcalanus pygmaeus. . 

 Microsetella norvegica. . . 



rosea 



Neocalanus gracilis 



tenuicornis 



Oithona plumifera 



siniilis 



spinirostris 



Oithonina nana 



Oncaea media 



minuta 



notopa 



venusta 



Paracalanus parvus 



Pontella cristata 



Pontellina plumata 



Pseudocalanus minutus. . 

 Rhincalanus cornutus. . . . 



nasutus 



Sapphirina angusta 



auronitens 



Scolecithricella abyssalis. 



bradyi 



marginata 



spinacantha, n. sp. . . 



Scolecithrix danae 



Undinula caroli 



darwinii 



The temperature was high at the surface and fell only 

 0?6 in the 100 meters; the salinity and hydrogen-ion con- 

 centration remained practically unchanged. Twenty-six spe- 

 cies were taken at the surface, 50 in the 50-meter tow, and 

 51 in the 100-meter tow. Thirty-five species (47 per cent) 

 were each confined to a single depth and 9 were present at 



all three depths. Candacia, Corycaeus. Farranula, Oithona, 

 and Oncaea were present in all tows, but more abundant in 

 the deeper tows. The 50-meter tow contained the new sjaecies 

 Scolecithricella spinacantha, and is the second of two adjacent 

 stations where it appeared. The deeper tows were a little 

 longer than the surface tow and their volume was larger. 



