LISTS OF SPECIES BY STATIONS 



159 



Station 151 

 October 25, 1929; 12° 40' N, 137° 32' W; bottom depth, 4918 m; 72 species 



Depth of tow, m 

 Temperature, °C 

 Salinity, 0/00 

 \'olume of tow, cm' 



Acrocalanus gibber a 



gracilis a 



longicornis c 



Aetideus armatus 



Calanus minor 



Calocalanus pavo r 



Candacia simplex 



Canthocalanus pauper f 



Carnegiella gracihs, n. gen. and n. sp. 

 Centropages calaninus a 



elongatus 



violaceus 



Clausocalanus arcuicornis a 



furcatus a 



Clytemncstra rostrata 



scutellata 



Copilia denticulata r 



quadrata 



Corycaeus crassiusculus f 



flaccus 2 



pumilus 



speciosus a 



typicus 



Eucalanus attenuatus 



elongatus 



monachus 



mucronatus 



Euchaeta acuta 



marina f 



Euchirella brevis 



Farranula carinata a 



gibbula f 



rostrata f 



Haloptilus longicornis 



Heterorhabdus papilliger 



spinifrons 



19 



Labidocera detruncata. . 

 Lubbockia aculeata 



squillimana 



Lucicutia clausii 



flavicornis 



longicornis 



Macrosetella gracilis. . . . 



oculata 



Mecynocera clausi 



Metridia brevicauda . . . 

 Microcalanus pusillus. . . 



pygmaeus 



Microsetella norvegica. . 



rosea 



Neocalanus tenuicornis. 

 Oithona plumifera 



similis 



spinirostris 



Oithonina nana 



Oncaea media 



minuta 



notopa 



venusta 



Paracalanus aculeatus. . 



parvus 



pygmaeus 



Phaenna spinifera 



Pleuromamma robusta. . 



Pontella tenuiremis 



Pontellina plumata 



Pseudocalanus minutus. 

 Sapphirina angusta 



auronitens 



metallina 



nigromaculata 



Undinula vulgaris 



The temperature was high at the surface and fell 13° in 

 100 meters; the density increased slightly. Thirty species 

 were taken at the surface, 51 in the 50-meter tow, and 45 

 in the 100-meter tow. Thirty-one species (43 per cent) were 



each confined to a single depth and 12 were found at all 

 three depths. The 50-meter tow was shortest but yielded the 

 largest volume. Corycaeus, Farranula, and Oncaea appeared 

 in all three tows, but Oithona was absent from the surface. 



