y/.- 



Figure 16. — Reproductive tract removed. One fetus still in embryonic sac. 



Figure 17. — Both fetuses removed from embryonic sacs, umbilicus still 

 attached, nonpregnant horn and ovary visible in lower left of photo. 



empty or contained only traces. Those from 

 zones 7 to 9, the heavily sampled areas of 

 Unimak Pass, western Alaska, and the area 

 in the Bering Sea immediately north of the 

 Aleutians, contained more food than did stom- 

 achs from seals collected in other zones 

 except zone 4. 



General account of stomach contents . — The 

 area surveyed in 1962 was small compared to 

 the areas examined in the previous 4 years. 

 (The three 1962 subareas were described in 

 the section on distribution.) Intensive collecting 

 from May to October gave a clear picture of 

 the food species taken by seals. 



41 



