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U.S. NATIONAL MUSEUM BULLETIN 291 



from 4.75 ml/L to well above 5.20 ml/L in water beneath the oxygen 

 minimum layer. The specimens were taken in the Antarctic Circum- 

 polar Water mass. 



35** West Longitude; 46° to 62 <> South Latitudes 



The sections along 35 °W cross the eastern end of the South Antilles 

 Arc (where the water shoals to less than 3000 m) and pass east of South 

 Georgia. A prominent feature of the temperature section (fig. 23) is 

 the relatively far northern position of the Antarctic Convergence in the 

 vicinity of 48°S. The northern location of the Antarctic Convergence 

 is due primarily to the bottom topography : as the Antarctic Circum- 

 polar Current (which has its greatest flow along the Antarctic Con- 

 vergence) flows eastward against the South Antilles Arc it is deflected 

 to the left by the Coriolis force ; after the current passes over the ridge 

 it bends toward the south again. The data are winter values. At all 

 depths south of 60°S the water temperature is less than 0.5° C; the 

 0.5° isotherm descends sharply to the bottom between 60° and 56 °S. 



Figure 23. — Vertical section, 35°W, 46°-62°S; temperature °C, oxygen concentration ml/L. 

 Capture points of Bathyieuthis abyssicola. 



