26 
EINAR LÖNNBERG, 
(Schwed. Stidpolar-Exp. 
present specimens. In such a case it is most suitable fo signify the fishes from 
South Georgia with a third name, as through such a proceeding, as well the relation- 
ship as the diversity are accounted for. The most apparent dissimilarity, which is 
observed at the first look, is the different shape of the pectoral which in the fishes 
from South Georgia is truncate, and has the same general outline as that same organ 
of T. newnesi , while the typical T. hansoni has a rounded pectoral. The interorbital 
width of younger specimens of the subspecies is apparently somewhat narrower than 
that of the types in which it is contained only 4 T / 2 to 5 times in length of head. 
In the same way the eye of the subspecies appears to be comparatively a little 
smaller. The number of rays of second dorsal and anal is smaller in the subspecies 
than in the types. The differences are satisfactory for the distinction of a geographic 
subspecies, but hardly more. The great distance between Victoria Land and South 
Georgia and the thereby effected complete isolation of the two races are sufficient 
to explain the differences, and it would almost have appeared stranger if there had 
not existed any differences at all between the Trematomus hansoni of the two coasts 
mentioned above. 
The specimens from the “Southern Cross” expedition had been collected in 
shallower water, 3 to 8 fathoms. The different physical conditions of the two coun- 
tries may explain this difference in habitat, but the average smaller size of the spe- 
cimens from Victoria Land must also be considered. 
Before this no species of Trematomus was known outside the Australian qua- 
drant, or north of the Antarctic polar circle. The distribution of the genus is, how- 
ever, by the discoveries of the Swedish Antarctic Expedition widened in a very con- 
siderable degree, and it is made more than probable that it is circumpolar, as three 
different species (conf. p. 45) have been found in the American quadrant and two 
of them so far north as at South Georgia. 
2. Trematomus bernacchii BOULENGER n. subsp. vicarius. 
i specimen caught on long-lines outside Boiler Harbour, Cumberland Bay, South 
Georgia, in a depth of 30 m. 19th of May 1902. 
D. V, 33; A. 31; Sq. 56 — 59 - 
Very thick-headed with the back in front of first dorsal broad and flattened. 
Depth of body 3V2 times in total length without caudal. Length of head 3V3 times 
in the same. Thickness of head at preopercles fully 2 * 4 /s (83 /) of its length. Inter- 
orbital width 4V5 times in length of head. Diameter of eye 4V5 times in length of 
head. Maxillary extending to below anterior third of eye. Lower jaw not pro- 
jecting beyond snout. Interorbital region flat, its anterior portion only scaly in the 
middle. Opercle, occipital region and cheek scaly, snout and preorbital naked. About 
