34 



COPEPODS OF LAST CRUISE OF CARNEGIE 



Station 27 

 September 7, 1928; 11° 20' N, 44° 12' W; bottom depth, 2571 m; 41 species 



Depth of tow, m 

 Temperature, °C 

 Salinity, o/oo 



Acartia longiremis 



Calanopia americana 



Calanus helgolandicus c 



minor f 



Calocalanus pavo 



Candacia bispinosa 



pachydactyla 



simplex 



Clytemnestra scutellata 



Corycaeus crassiusculus 



speciosus 



Eucalanus elongatus 



Euchaeta marina 



Euchirella brevis 



pulchra 



Farranula carinata f 



gibbula f 



rostrata 



Haloptilus longicornis 



Lucicutia clausii 



flavicornis 



Macrosetella gracilis c c 



Mecynocera clausi . . r 



Megacalanus longicornis . . f 



Microcalanus pusillus . . f 



Microsetella norvegica f c 



Miracia efferata f 



Oithona plumifera . . f 



similis . . a 



spinirostris . . f 



Oithonina nana . . c 



Oncaea minuta . . f 



venusta c a 



Paracalanus parvus 



Phaenna spinifera . . f 



Pontellina plumata r r 



Pontellopsis perspicax r 



Pseudocalanus minutus . . c 



Sapphirina nigromaculata . . r 



Scolecithrix danae . . f 



Undinula vulgaris . . r 



The temperature was high at the surface, and dropped 

 1?5 at 50 meters and nearly 9° more at 100 meters; the salinit\' 

 remained practically unchanged, but the hydrogen-ion con- 

 centration decreased a little at 100 meters. Eleven species 

 were found at the surface, 32 at 50 meters, and 28 at 100 



meters. Seventeen species were each confined to a single tow 

 and 6 were found in all three tows. Macrosetella, Microsetella, 

 and Oithona species were especially abundant in the 100-meter 

 tow, which contained in addition one of the two Atlantic 

 records of Euchirella pulchra. 



