DISCOVERY REPORTS 



JZZ 



that of the adults but, in general, the region of abundance is a belt extending for 200 miles south of 

 the Antarctic convergence. This, however, is not always so; in the Falkland sector the region of 

 abundance extends for about 200 miles to the north of the convergence and at Station 1880 (Fig. 8) 

 in 45° 53-8' S, some 650 miles north of the mean position of the convergence, moderately large 

 numbers (93) of third calyptopes and first, second and third furcilias were taken in an N 100 B. This 

 station, at which the temperature was 7-47° C. at the surface and 3-95° C. at 100 m. lies in the path 



45*^ 



65° 



60° 



Fig. 8. The distribution of larval E. triacantha on the Patagonian shelf and slope from shallow oblique hauls with the i m. net. 

 Night stations marked N. Isotherms taken from an unpublished internal report. 



of the relatively cold Falkland current which runs northwards from Cape Horn and extends over the 

 Patagonian continental shelf and slope (Deacon, 1937, p. 51). As shown in Fig. 8 a concentration of 

 larvae was found in the Subantarctic water east of Cape Horn and some of these were probably carried 

 north in this current. 



Fig. 8 shows three east-west lines of stations which started in oceanic water and ran in towards 

 the Patagonian coast over the slope and shelf. These have been used to determine whether or not 

 E. triacantha larvae are present in shelf water. Many of these stations were worked during daylight 



