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BULLETIN OE THE BUREAU OF FISHERIES 
does there appear to be much change in its status from season to season, for it was 
found at about 20 per cent of the stations occupied by the Halcyon during December, 
1920, and January, 1921, and at about 25 per cent of the Albatross stations of Feb- 
Fig. 50. — Occurrence of the euphausiid shrimp Thysanoessa longicaudata. X, locality records, February to May, 1920; 
®, July to September, including Hansen’s (1915) records 
ruary to May, 1920 (fig. 50). Although the locations where Th. longicaudata has 
actually been taken are not concentrated in the one side of the gulf or in the other, 
we have usually made our largest catches of it in the eastern part, both in spring 
