76 
“ TERRA NOVA” EXPEDITION. 
That there are only three of them, all previously described, is in agreement with 
what is known of the poverty in Decapoda of Antarctic waters. Chorismus antarcticus 
has already been reported in the Ross Sea, as well as in South Georgia and to the south 
of Kerguelen. It has thus an Antarctic circumpolar distribution, extending as far north 
as South Georgia. The same is true of Crangon antarcticus, with the difference that 
specimens of this species taken between 80° E. and 160° W. long, belong to a different 
variety from those of South Georgia, on the opposite side of the Antarctic region. These 
two species are the only Decapoda reported from South Georgia, so that, so far as this 
evidence goes, that island clearly belongs to the same geographical province as the 
Antarctic continent, and not to the adjoining South American region. 1 have discussed 
below the affinities of Crangon antarcticus and its bearing upon the bipolarity theory. 
Pasiphaea longispina was taken near Kaiser Wilhelm Land by the German expedition. 
Very probably it is also circumpolar. Two other species of Pasiphaea, recently 
described by Stubbing, but not obtained by the “ Terra Nova,” make up to five the 
total number of Antarctic Decapoda at present known. 
(2) The New Zealand species were : 
Solenocera novae-Zealandiae, n. sp. 
Sergestes semiarniis, Bate, 1888. 
Leucifer batei, Borr., 1915. 
Thalassocaris novae-zealandiae, n. sp. 
Rhynchocinetes typus , H. M.-Edw., 1837. 
Tozeuma novae-zealandiae, n. sp. 
Periclimenes (Hamiger) novae-zealandiae, n. sp. 
Aegean cataphractus (Olivi), 1792. 
Jasus, sp. 
Arctus immaturus, Bate, 1888 (? sp.). 
Axius novae-zealandiae, n. sp. 
Galathea pusilla, Hend., 1885. 
Uroptychus maori , n. sp. 
,, novae-zealandiae, n. sp. 
Paguristes suhpilosus, Ilend., 1888. 
Eupagurus novae, Chilton, 1911. 
,, Icirki, Filhol, 1885. 
,, crenatus, n. sp. 
Porct llanopagurus edwardA, Filhol, 1885 (? sp.). 
Port aims corrugatus (Penn.), 1777. 
Pilumnus maori, n. sp. 
Pinnotheres pi sum (L.), 1766. 
Grapsus ( Leptograpsus) variegatus (Fal >r.), 1793. 
Plug asm chahrus (L.), 1764. 
