LISTS OF SPECIES BY STATIONS 



149 



Station 140 

 October 3, 1929; 23° 26' N, 159° 27' W; bottom depth, 4762 m; 46 species 



Depth of tow, 111 

 Temperature, °C 

 Salinity, 0/00 

 \'olume of tow, cm' 



Depth of tow, m 

 Density (o-tp) 

 Hydrogen-ion cone. (pH) 

 Length of tow, miles 



Acartia danae 



Acrocalanus gibber 



gracilis 



longicornis 



Calanus minor 



propinquus 



Calocalanus pavo 



styliremis 



Candacia simplex 



Centropages calaninus. . . . 

 Clausocalanus arcuicornis. 



furcatus 



Copilia denticulata 



Corycaeus crassiusculus. . . 



furcifer 



longistylis 



speciosus 



typicus 



Euchaeta acuta 



marina 



Euchirella curticauda 



Farranula carinata 



curta 



Farranula rostrata 



Labidocera detruncata. . 



Lucicutia clausii 



Macrosetella gracilis. . . . 



Mecynocera clausi 



Microsetella rosea 



Neocalanus gracilis 



tenuicornis 



Oithona attenuata 



plumifera 



similis 



spinirostris 



Oncaea minuta 



venusta 



Paracalanus parvus 



pygmaeus 



Pontella cristata 



tenuiremis 



Pontellina plumata 



Pseudocalanus minutus. 



Scolecithrix danae 



Undinula darwinii 



vulgaris 



The temperature was high at the surface and fell about 

 1?5 in 100 meters; the salinit>' and hydrogen-ion concentra- 

 tion remained almost unchanged. Eighteen species were 

 taken at the surface, 28 in the SO-meter tow, and 34 in the 

 100-meter tow. Twenty-four species (52 per cent) were each 

 confined to a single tow and 11 were present in all three 



tows. Candacia. Corycaeus, Farranula, Oithona, and Oncaea 

 were each distributed in all three tows, an exceptional record 

 for Candacia. The three tows were of exactly the same 

 length, but the volume of the surface tow was one-half larger 

 than that of the 50-meter tow and three times that of the 

 100-meter tow. 



