COPEPODA 179 



inside the edge of the continental shelf. It gave marked indications of a vertical 

 migration over a considerable range of depth ; this is described on p. 236. The complete 

 record of its occurrence is given in Appendix II. 



It has been taken by the Belgica, 1 Scotia, 2 Gauss, 3 Terra Nova, 1 Aurora 5 and 

 Vikingen 6 Expeditions. 



Metridia lucens, Boeck. The complete record of its occurrence is shown in Appendix 

 II. It was widely distributed throughout the area, but rarely abundant, and the maximum 

 number per 50 m. haul with the N 70 V net, 7224, was taken in the top 50 m. at St. 70 

 towards the Falkland Islands out of the Antarctic Zone across the line of Antarctic 

 Convergence. Its distribution is shown in Fig. 81. It was more abundant at the 

 oceanic stations approaching South Georgia from the north-east in February 1926 and 

 between South Georgia and the Falklands in February 1927 than it was in the waters 

 immediately surrounding South Georgia in the December-January survey of 1926-7; 

 but this may partly be due to an increase with the advancing season, for in March 

 1926 it was more abundant off the north-east coast of South Georgia than it was during 

 the December-January survey. 



Its vertical distribution is shown in Figs. 82 and 83. There were indications of a 

 vertical migration upwards at night; this is further discussed on p. 236. 



It was taken by the 'Terra Nova' 4 as far south as 71 49' S, but only in small 

 numbers south of latitude 6o° S. It is no doubt widely distributed in the Southern 

 Ocean; Stebbing (19 10) describes it as abundant south and west of Cape Colony. 



Metridia princeps, Giesbr. This species was probably confined to the intermediate 

 layer, although it may have occurred in the cold deep-water layer at St. 138. 



It was taken by the 'Gauss' 3 in the region of Heard Island, and by the 'Terra 

 Nova' 4 within the Antarctic Circle. M. curticaada, Giesbr., which was taken in 

 numbers by the 'Terra Nova' 4 from depths of 600 m. and more between 66° 30' and 

 76 S, was not recorded in our collections. 



Liicicntia magna, Wolf. 

 St. WS 22 ... 1 at 750-50001. St. WS 69 ... 1 at 1000-750 m. 



St. WS 38 ... i? at 1000-750 m. 



This species was taken by the 'Terra Nova' 4 in two vertical hauls from 1000 and 

 600 m. in the Antarctic. 



Lucicutia maxima, Steuer. 



St. 129 1 6*, 1 $ at 950-780111. 



Not previously recorded from the Antarctic Zone. 



1 Giesbrecht (1902). 2 Scott (1912). 3 Wolfenden (1911). 



4 Farran (1929). 5 Brady (1918). 6 Ottestad (1932). 



