148 



COPEPODS OF LAST CRUISE OF CARNEGIE 



Station 139 

 September 22, 1929; 21° 47' N, 155° 31' VV; bottom depth, 5030 m; 62 species 



Depth of tow, m 

 Temperature. °C 

 Salinity, 0/00 

 Volume of tow, cm' 



Acartia danae f 



Acrocalanus gibber f 



gracilis a 



longicornis f 



monachus 



Aetideus armatus 



Calanus minor 



Calocalanus pavo r 



styliremis 1 



Candacia bispinosa 



simplex 



Centropages calaninus 



elongatus 



Clausocalanus arcuicornis 



furcatus 



Clytemnestra rostrata 



Copilia denticulata 



quadrata 



Corycaeus clausi 



crassiusculus f 



flaccus r 



longistylis f 



pacificus 



speciosus c 



typicus 



Eucalanus attenuatus 



elongatus 



Euchaeta marina 



Euchirella curticauda 



Farranula carinata 



gibbula 



Farranula rostrata 



Haloptilus longicornis. . . 



spiniceps 



Labidocera detruncata. . 

 Lubbockia squillimana. . 

 Lucicutia clausii 



flavicornis 



Macrosetella gracilis. . . . 



oculata 



Mecynocera clausi 



Microcalanus pusillus. . . 



pygmaeus 



Microsetella rosea 



Neocalanus gracilis 



tenuicornis 



Oithona pUimifera 



similis 



spinirostris 



Oithonina nana 



Oncaea minuta 



tenella 



venusta 



Paracalanus par\ us 



pygmaeus 



Pontellina plumata 



Pseudocalanus minutus. 

 Sapphirina auronitcns. . 



metallina 



nigromaculata 



Scolecithricella bradyi . . 

 Undinula darwinii 



The temperature was high at the surface and fell 4° in 

 100 meters; the salinity and hydrogen-ion concentration 

 changed very little. Twenty-six species were taken at the 

 surface, 44 in the 50-meter tow, and 36 in the 100-meter tow. 

 Twenty-eight species (45 per cent) were each confined to a 

 single tow and 10 were present in all three tows. Corycaeus, 



Oithona, and Oncaea were each distributed at all three depths, 

 but Farranula did not appear in the 100-meter tow. The three 

 tows were of practically the same length, but the volume of 

 the surface tow was as large as the combined volumes of the 

 other two. Oithona plumijcra was especially abundant in the 

 50-meter tow. 



