117 



CRUSTACEA 

 Ostracoda 



The Ostracoda which were kindly identified by Mr F. C. Fraser were represented 

 by at least eight species of Conchoecia, nearly all occurring in or over deep water. 



Conchoecia hettacra, Miiller, was the most abundant. It was distributed evenly round 

 South Georgia in the December-January survey, 1926-7, in the deeper water beyond the 

 continental shelf, that is in the warmer intermediate layer. Its average depth distribu- 

 tion as shown by the N 70 V nets is shown in Table XXI. It was present to the east 

 of South Georgia also in November 1926 and May 19 17, but not in March 1926. It was 

 present in small numbers between South Georgia and the Falkland Islands in February 

 1927. Its general distribution is tabulated in Appendix II. It has been recorded by the 

 Belgica, 1 Gauss 2 and Terra Nova 3 Expeditions, and thus is circumpolar in distribution. 



The distribution of the remaining species is as follows : 



Conchoecia antipoda, Miiller. 



This species is also circumpolar, having been taken in the Antarctic Zone by the 

 ' Gauss ' 2 and ' Terra Nova '. 3 



Conchoecia elegans, G. O. Sars. 

 St. WSno... 1 at 500-300111. St. WS in ... 3 at 250-100 m. 



This and the four next species are recorded from the Antarctic for the first time. 

 1 Miiller (1906). 2 Miiller (1908). 3 Barney (1921). 



