124 



U.S. NATIONAL MUSEUM BULLETEST 291 



60 



2500 



Figure 32. — Vertical section, 11S°W, 55°-70°S; salinity°/oo, sigma-t. Capture points of 



Bathyteuthis abyssicola. 



Cruises 11, 13, and 18. The plots range from 98°W to 120°W. In the 

 same area only six tows were unsuccessful in the normal depth range 

 of B. abyssicola: three were in less than 1000 m, two were in over 

 2500 m, and one was in 1600 m. 



All plots on the temperature section fall within the ranges of the 

 simultaneous temperatures. Two tows with nine specimens were taken 

 below the 1.5° C isotherm. Ten captures were made in the 1.5° C to 

 2° C range. The eight deeper tows (1350-2200 m) took 56 specimens, 

 an average of seven specimens per tow. The two shallow tows took 

 one specimen each in 625 and 325 m. The remaining seven captures 

 were made in water of 2° C to less than 2.5° C. The three captures from 

 1000-1300 m contained 16 specimens; the four tows between 425 and 

 875 m captured five specimens, all juveniles. The tows at 325 and 425 



