96 



COPEPODS OF LAST CRUISE OF CARNEGIE 



Station 76 

 February 16, 1929; 15° 18' S, 97° 28' W; bottom depth, 3197 m; 19 species 



Depth of tow, 111 

 Temperature, °C 

 SaHnity, o/oo 

 Volume of tow, cm' 



Acartia danac 



negligens 



Aetideus armatus. . . . 



Calocalanus pavo 



Corycaeus longistylis . 



speciosus 



Haloptilus ornatus. . . 

 Lucicutia clausii 



flavicornis 



Mecynocera clausi . . . 



Microsetella rosea 2 



Oithona attenuata f 



similis c 



Oncaea minuta f 



venusta f 



Paracalanus parvus c 



Pseudocalanus minutus c 



Temora discaudata 



stylifera f 



The temperature was high at the surface and dropped onh' 

 2° in 100 meters; the salinity and hydrogen-ion concentration 

 were high and remained constant. Thirteen species were 

 taken at the surface and 11 in the 100-meter tow, the 50- 



meter tow being lost. Fourteen species (70 per cent) were 

 each confined to one tow and 5 appeared in both tows. 

 Aetideus, Haloptilus, and Lucicutia appeared as usual only at 

 100 meters, Paracalanus and Pseudocalanus at the surface. 



Station 77 

 February 18, 1929; 14° 20' S, 103° 12' W; bottom depth, 4094 m; 27 species 



Acartia danae f 



Calanus minor f 



Calocalanus pavo f 



plumulosus 1 



Candacia simplex 2 



Clausocalanus arcuicornis a 



Corycaeus crassiusculus a 



longistylis a 



speciosus a 



Eucalanus attenuatus 2 



Farranula carinata a 



gibbula a 



rostrata a 



Labidocera detruncata a 



Lucicutia longicornis 2 



Mecynocera clausi f 



Microsetella rosea f 



Oithona attenuata 2 



Oithona plumifera f 



similis f 



Oncaea minuta f 



venusta c 



Paracalanus parvus a 



Pseudocalanus minutus a 



Rhincalanus cornutus 1 



Sapphirina auronitens 1 



Temora discaudata f 



We have at this station only the surface tow, which is 

 noteworthy for its volume (144 cm') in comparison with its 

 length (0.3 mile). Temperature, 23?7; salinit},', 36.0 o/oo; 

 density, 24.5; hydrogen-ion concentration, 8.19. The number 

 of species (27) is also well abo\e the average for a surface 

 tow, and 10 of them are recorded as abundant. The presence 



of Candacia, Eucalanus, and Rhincalanus would suggest that 

 .something had delayed the usual downward migration, since 

 these genera are usuall>' found in the deejier tows in the da\'- 

 time. Clausocalanus, Corycaeus, Farranula, and Pseudocalanus 

 were each very abundant, whereas Rhincalanus and Sap- 

 phirina were each represented by a single specimen. 



