342 



DISCOVERY REPORTS 



Euphausia tenera Hansen 

 Euphausia gracilis G. O. Sars, 1885, p. 89 (nee E. gracilis Dana, 1852, p. 644); E. tenera Hansen, 19056, p. 9. 



Table 3 . Occurrence of Euphausia tenera 



This tropical to subtropical species occurred at only one station. Since this station is a southern 

 one, it is probable that many of the unidentified pre-furcilia larvae encountered at other stations are 

 really E. tenera. 



Euphausia recurva Hansen 

 Euphausia recurva Hansen, 19056, p. 13. 



Table 4. Occurrence of Euphausia recurva 



Evidence of diurnal vertical migration may be discerned in these data. At the day stations WS 976 

 and WS 996 the animals are absent from the surface layers while at the night stations WS 977 and 

 WS 997 they are concentrated in the upper layers and absent from the lower layers. 



