AMPHIPODA OF THE SCOTTISH NATIONAL ANTARCTIC EXPEDITION. 489 
Oradarea longimana Walker, 1907, p. 32. 
5 3 Chevreux, 1906p, p. 54. 
Leptamphopus novx-zealandiz Stebbing, 1906, pp. 294 and 727. 
Ms 5 Chilton, 1909, p. 621. 
South Orkneys, Scotia Bay, Station 325. 1903. A few specimens. 
This species is widely distributed in Antarctic and sub-Antarctic seas. It very 
closely resembles Djerboa furcipes, except in the telson, which is undivided. Fuller 
details concerning it will be found under the last reference given above. 
Genus Hatiracoipes O. Sars, 1893. 
Haliragoides australis, sp. nov. 
South Orkneys, Scotia Bay, Station 325; 9-10 fathoms. May 1903. A few 
small specimens, about 3 mm. long; all very delicate and fragile. 
The specimens are almost too delicate and fragile to allow of a full description, but 
there is no doubt that they belong to this genus, and that they come pretty close to 
HT, inermas (O. Sars) from the northern seas. They appear to differ in having the first 
and second segments of the pleon slightly produced backwards into a small dorsal 
tooth ; the postero-lateral angle of the third pleon segment is produced to a small acute 
tooth. The head has a more distinct rostrum curving considerably downwards ; the eye 
is large, well-developed, oval, but colourless in spirit specimens. The first gnathopod 
differs in having the propod somewhat narrowed at the base and the palm slightly 
shorter than the hind margin. In all other points that can be observed the specimens 
seem to be very close to H. wmermas. 
The occurrence of this species at the South Orkneys adds another to the list of 
eases where a northern species of a genus is represented in the south by the same species 
or by one closely allied. 
Genus Eustrus Kroyer, 1845. 
In order to make clear what is now known about the species of Husvrus from 
sub-Antarctic seas it seems desirable to give the following historical account :— 
In 1880 G. M. THomson identified specimens from New Zealand with the northern 
species 1. cuspidatus Kroyer, but distinguished them as a new variety, antarctica. 
In 1888 SrEBBING examined two specimens collected by the Challenger, one 
from Kerguelen and the other from Heard Island, and referred them to #. longipes 
Boeck, another northern species, saying that they were distinguished from 
EL. cuspidatus by the absence of the spine-teeth from the apex of the second joint 
of the maxilliped palp. 
In 1893 Sars in identifying specimens from the Lofoten Isles with /. longipes gave 
the points which he considered distinguish it from the other species, and said that the 
form recorded under this name from the Challenger Expedition is scarcely identical 
with Boxrcx’s species. 
