18(5 1)11 WALTER M. TATTEESALL <>N 



Station 417, lat. 71 22' S., long. 16 34' W., 1410 fathoms, trawl One 



large female. 

 Station 418, lat. 71 32' S., long. 17 15' W., 1221 fathoms, trawl (not on 



bottom). One male. 

 Station 422, lat. 68 32' S., long. 12 49' W., vertical net, 0-800 fathoms. 



-Three. 



Dr BRUCE has furnished me with three coloured sketches of Euphausians, all of 

 which refer to this species. One of the sketches, of a specimen caught in February 

 1903 at the edge of the ice-floes, agrees almost perfectly with the account of the colour 

 of this species as noted by Dr G. KACOVITZA during the expedition of the Belgica, and 

 published by HANSEN (19086). In the other two sketches, of specimens captured in 

 February 1903 and March 1904, there is considerably more red pigment shown on the 

 dorsal surface of the carapace and abdomen. The distribution of the pigments is the 

 same in all three sketches, but in the two latter ones the red is intensified. This 

 difference, it seems probable to me, may be accounted for by the supposition that, in 

 the animal from which the first sketch mentioned above was made, the red chromato- 

 phores were in a contracted condition, and in the other two specimens they were in 

 an expanded condition at the time they were painted. 



Eupliausia superba is the Euphausian par excellence of the Antarctic Ocean. It 

 is circumpolar in its distribution, and has been recorded by all the recent expeditions 

 which have visited those waters. It likewise forms the major part of the food of the 

 crab-eating seal, Lobodon carcinophaga, and of certain of the penguins. 



Euphausia htcens, Hansen. 



E. lucens, Hansen, 1905e. 

 E. lucens, Hansen, 1911. 

 Discovery. 



Lat. 36 27^' S., long. 8 20' W. Two. 

 Lat. 37 47' S., long. 3 59' E. Two. 

 Lat. 37 33f S., long. 6 09' E. Fifteen. 



This species of the genus is one of the rarest, and has not been captured by any 

 of the expeditions since the Challenger. HANSEN mentions specimens from three 

 localities in the South-East Atlantic, very much in the same neighbourhood as the 

 present records, and from one locality between Tasmania and New Zealand. 



Euphausia hemigibba, Hansen. 

 E. he.migibba, Hansen, 1910. 



Scotia. 



Station 14, lat. 21 28' N., long. 22 40' W., tow-net. Thirteen. 

 Station 18, lat. 19 59' N., long. 23 34' W., tow-net. One. 

 Station 21, lat. 18 28' N., long. 24 28' W., tow-net. Two. 

 (ROY. soc. EDIN. .TRANS., VOL. XLIX., 876.) 



