ZOOGEOGRAPHY 241 



shows that these 459 specimens occurred at six stations only, two nets containing four specimens 

 and the others 43, 161, 190 and 61 specimens respectively. Of these last, 351 specimens were caught 

 between sunset and sunrise, consequently this sparse, patchy distribution may be due in part to diurnal 

 migration. The positions of these surface stations are also shown in Text-fig. 37. 



At depths between 250-50 m., P. longicirrata was much more abundant, particularly in the deeper 

 layers of the Antarctic Surface Water (Text-figs. 38-41), and was more generally distributed around 

 the island. Hardy and Gunther recorded a similar picture. 



.WS 151(H) 



• WS H9{H) 

 • WS 146(41 



~~ ISorr 



Fig. 42 Fig. 43 



Text-figs. 42-43. Occurrence of Pelagobia longicirrata round South Georgia. N 70 V nets. Number of specimens at each 

 station in brackets. Fig. 42. 1000-250 m. February-March 1928. Fig. 43. 1000-250 m. January- February 1930. * = \ sample 

 sorted. 



P. longicirrata was fairly evenly distributed around South Georgia at depths between 250- 

 1000 m., below which nets were not used (Text-figs. 42, 43). In the summer months, its 

 occurrence in the deeper layers gives much the same picture of vertical distribution as that shown 

 for the o° Line, but I have no evidence of its migration to depth in winter in the South Georgia 

 area. 



P. longicirrata was also collected around South Georgia at Sts. 17 and 41 (Monro, 1936), and 

 St. 1079; these records have been plotted on Text-fig. 44 and details are listed in Appendix II, 

 Table j; they conform to the general pattern already found. 



The records of P. longicirrata from the South Sandwich Survey are plotted in Text-fig. 44 and 

 listed in Appendix II, Table b. It was collected at only sixteen of the fifty-eight stations and never in 

 large numbers, which is surprising because the collections were made during the summer and both 

 N 50 and N 70 nets were used frequently. However, the records are only of restricted value, because 

 nets did not fish below 250 m. 



P. longicirrata was also collected at numerous miscellaneous stations (Text-fig. 44 and Appendix II) 

 throughout the South Atlantic Ocean. 



Previous records. Stop-Bowitz (1948) reported P. longicirrata from the area about the Greenwich 

 Meridian in twenty-six nets hauled by the 'Norwegica', from depths down to 400 m.; and of these 

 twelve were south of 59 53' S. and hauled between 100 m. and the surface. 



