DISTRIBUTION OF YOUNG STAGES OF EUPHAUSIA SUPERBA 



127 



At St. 169, to the east of Clarence Island, the three Calyptopis stages and the ist Furcilia were 

 represented in a total of seventeen larvae, with Calyptopis 3 predominating. 



(b) South Georgia to the South Orkneys and Elephant Island, February 1929 (Sts. 



ws 374-381). 



At St. 376, midway between South Georgia and the South Orkneys, four adult male and two adult 

 and gravid females were taken in the 750-500 m. net. At the next station to the south, St. WS 377, 

 a single egg of E. superba was taken in the 250-100 m. net. Nothing was found at the two following 

 stations, but at St. WS 380, midway between the Orkneys and Elephant Island, four eggs were found, 

 two in the 250-100 m. and two in the 500-250 m. net. There were no larvae at St. WS 381. 



Fig. 48. Distribution of young Euphausia superba, Scotia Sea (70-cm. net hauls). 



{c) South Orkneys to the South Sandwich Islands and South Georgia, February 1931 

 (Sts. 618-629). 



Vertical nets were fished at Sts. 618, 620, 622, 624 and 629. 



At St. 618, the first station on this line, situated to the north-east of the South Orkneys, there 

 were 985 larvae distributed from the surface down to 750-500 m. Calyptopis i predominated, but 

 there were present also Metanauplii, deep down, and Calyptopis 2. At this station also an egg was 

 found in the 250-100 m. sample. 



At St. 620, larvae, totalling 243, were found in all the nets down to 1000 m. with the exception of 

 the 500-250 m. haul. Calyptopis i was again the most plentiful with few Calyptopis 2 and Meta- 

 nauplii, the latter being entirely confined to the lowest nets. 



At St. 622 the number of larvae was much reduced, only forty-two being taken. With the exception 

 of one Calyptopis 2 all were in the Calyptopis i stage. No Metanauplii were obtained at this station. 



At St. 624 only one larva, a Furcilia i, was obtained from the quarter sample of the 70-cm. net 

 analysed. Ten Furcilia i, four Furciha 2 and one Furciha 3 were taken in the i-m. net. 



There were no larvae at St. 629, between the South Sandwich Islands and South Georgia. 



Of these stations, all up to St. 626 were taken in the proximity of the pack-ice edge. 



