— 28 — 



wards; second joint slightly longer than, and scarcely as 

 robust as, in E. lucëris, but not longer than the third. Copu- 

 latory organs (Fig. 9) with the terminal process only mode- 

 rately long, rather far from reaching the end of the median 

 lobe, slightly thicker at the end, which is bifurcate with 



Fig. 9. Euphausia frigida n. sp. A. Inner and median 

 lobe of left copulatory organ, from behind, p 2 . termmal 

 process ; /? 3 . proximal process ; p' 1 . lateral process. 

 B. Inner lobe, seen from the inner side. 



the inner ramus shorter, or at most as long as, and scarcely 

 thicker than, the outer. Proximal process conspicuously 

 longer than the terminal, with a slender and somewhat 

 long secondary branch in front at the end of the second 

 third ; the distal part much expanded, forming a plate 

 w r hich is about as long as broad, not oblique and with the 

 terminal margin deeply emarginate near the middle. 

 Lateral process with a tooth a little from the end as in 

 E, lucens. — Length of the largest specimen 20. 5 mm. 



The Swedish Antarctic Expedition . has captured a good 

 number of this species at four stations in the area betveen 

 lat. 49 0 and 53°io 7 S., long. 48 i/3° and 36 i/3° W. Tatter- 

 sall has mentioned (77, p. 14-16) a number of specimens 

 from lat. 57°25i/2 1 S., long. 1 5 1 0 43 1 E. 



E. pacifica n. sp. — A rostral process is not developed, 

 the front margin of the carapace being only feebly produ- 

 ced, forming a very obtuse angle at the middle with the 



