20 



PROCEEDINGS OF THE NATIONAL MUSEUM 



RemarJcs.— This species appears to be generally distributed in the 

 tropical oceanic area, but is not so abundant as either E. amerieana 

 or E. hrevis. It occurs frequently at the surface but is also distrib- 

 uted evenly throughout the upper 200 meters. Below this depth it 

 is comparatively rare and occurred in no haul from a greater depth 

 than 700 meters. 



23. EUPHAUSIA TENERA Hansen 



Occurrence 



Analysis of the above records 



Bemarks. — The vertical distribution of this species is very similar 

 to that of E. hrevis; it is abundant at the surface but fairly generally 

 distributed in the upper 200 meters. 



