PTEROPODA 



Limacina balea, Moller. This species was widely distributed throughout the area, but 

 was never abundant, although it occurred in fair numbers at stations between South 

 Georgia and the Falkland Islands— Sts. WS63, WS67, WS 68 and WS69, and in larger 

 numbers off the north-east coast of South Georgia in late May 1927, Sts. WS 110-114. 

 Our knowledge of its depth distribution may be summarized in the following table : 



Table XXXV 

 The depth distribution of Limacina balea as shown by the N 70 V nets 



A complete record of its occurrence is given in Appendix II. 



The species does not appear to have been recorded in the Antarctic Zone before, 

 although the 'Terra Nova' 1 collected specimens in the region of New Zealand. 



Limacina helicina (Phipps). This species was taken in larger numbers than any other 

 Pteropod, although it was absent from the line approaching South Georgia from the 

 north-east in February 1926, and absent off that side of South Georgia in March. 

 During the December-January South Georgia Survey, 1926-7, it was present at nearly 

 all stations; its distribution in this survey as found by the N 100 H nets is shown in 

 Fig. 97. It was particularly abundant at Sts. 136, 137, 138, to the east of the island, and 

 St. WS 43 to the south-west. It was only taken at one station and in small numbers 

 between South Georgia and the Falkland Islands. It was abundant at St. 161 far to the 

 south-west of South Georgia. 



Table XXXVI 



The depth distribution of Limacina helicina as shown by the N 70 V nets 



1 Massy (1920). 



