Bull. U. S. B. F., 1924. (Doc. 968.) 



Fh,. 25. -Surface plankton dominated by Oikopleura at a st ition on the continsnl il slop' south wesl of 

 Georges Hank, May 17, L920 (station 20129), where the deepsr water (fig. 26) was dominated by 

 euphausiids and copepods. X 3.5 



Fig. 26. -Plankton in the 100-0 meter haul, dominated by Calanus fimnaTchicus and other copepods, 

 and by euphausiid shrimps (Thysanoessa) al a station ofl the southwest slope of Georges Bank, 

 May 17, 1920 (station 20129), where the surface catch (fig. 25) was dominated by Oikopleura. X 4 



