866 



DR WALTER M. TATTERSALL ON 



Turning to the Antarctic Schizopoda, the results of the Scotia may be compared 

 with those of other expeditions in the form of a table, as follows : — 



Species. 



Euphausia superba, Dana 



,, longirostris, Hansen 



„ triacantha, H. and T. 



,, friyida, Hansen 



„ cry stalloropl lias, H. and T. 



,, Vallentini, Stebb. . 



Thysanoessa macrura, Sars 

 ,, vicina, Hansen 



Eucopia australis, Dana . 



Hansenomysis antarctica, H. and T. 



Antardomysis maxima, H. and T. 

 „ Ohlinii, Hansen . 



Ptseudomma Belgicx, H. and T. 



Dadylamblyops Hodysoni, H. and T 



Mysidetes poslhon, H. and T. . 



Boreomysis distinguenda, Hansen 

 Bnicei, W. M. T. . 



French 

 Expedition.! 



Belgica. 



X 

 X 



X 

 X 



Discovery. 



Swedish 

 Expedition. 



Scotia. 



X 



X 

 X 



X 



X 



X 





X 



X 





X 







X 



X 





X 



X 



X 



X 



X 







X 



X 



X 



X 





X 



X 



X 



X 



X 





X 



X 





X 







X 



X 



X 

 X 



I have taken the average limits of free and floating ice as the boundaries of the 

 Antarctic Regions. This limit for the South Polar waters was laid down by Dr Bruce* 

 in 1894, and is shown on a chart of the South Polar regions published by the British 

 Admiralty. 



The French Expedition (Frangais) had its headquarters at Graham Land, a little 

 to the west of the Weddell Sea. The Schizopoda were described by Coutiere (1906). 



The Belgica worked a little further to the west of the Frangais. The Schizopoda 

 were described by Hansen (1908). 



The Discovery had its winter quarters at the opposite side of the Pole to the Scotia, 

 at Victoria Land. The Schizopoda were described by Holt and Tattersall (1906), 

 and Tattersall (1908). 



The Swedish Antarctic Expedition (Antarctic), under Nordenskjold, explored the 

 region to the east of Graham Land, between the ground worked by the Scotia and the 

 Frangais. The results, as far as the Schizopoda are concerned, have not yet been 

 published ; but Hansen, in several of his recent papers, has recorded various species 

 belonging to the material of that expedition, and I have abstracted such records for 

 the purposes of the above table. (See note, p. 894.) 



It will be seen, therefore, that the recent expeditions to the Antarctic have 

 explored that ocean between the Weddell Sea westwards to Victoria Land, about half 

 the South Polar Ocean, and we have a fair knowledge of the Schizopod fauna of that 

 area. The German Expedition (Gauss) had its headquarters half way between those of 

 the Scotia and Discovery, in about lat. 90° E., in the centre of the unexplored eastern 



* "Antarctic Birds," Knowledge, September 1, 1894. 



