58 
EINAR LÖNNBERG, 
(Schwed. Siidpolar-Exp. 
descending and an ascending loop, but as the intestine is rather long in this species 
the descending (right) loop shows some undulations and the ascending (median) loop 
is curved to the left at its anterior end, as is shown on fig. 3. When the intestine 
is not so long in relation to the abdominal cavity the loops mentioned run almost 
straight. In some species the regularity is less pronounced. In one specimen of 
N. macroc. inarmor at a , for instance, the anterior end of the ascending loop is tiqped 
over to the right, in another it has some undulations on its left side and in a third 
both loops run quite straight. In N. gibberifrons the intestine is large and wide 
compared with the short abdominal cavity and in consequence of this the ascending 
loop of the intestine must make a deep bend towards the right so that it is quite 
doubled up on itself. In N. mizops nudifrons both loops are very short and straight. 
In Champsocephalus gunnari the intestine bends backwards immediately from the 
pyloric tract as may be seen on fig. 4, otherwise it agrees with the Notothenias and 
so does Harpagifer. 
Pelagic and benthopelagic fishes. 
The Expedition could not afford to spend much time for explorations of the 
deep sea and it was not especially fitted out for such work. There was, however, 
some pelagic resp. benthopelagic fishing done and it gave also a comparatively good 
result. Not counted the larvæ and evolutional stages which have not been worked 
through as yet, there are 10 species of pelagic fishes in the collection and among 
them not less than 6 must be regarded as new. Only two of the whole lot are 
caught so far south viz. S. of lat. 63° S. that they can be regarded as truly ant- 
arctic, but one of these, a Bathylagus , is among the new species. 
I. Melamphaës (Plectromus) nordenskjöldii n. sp. 
i specimen from a depth of 2,700 m. caught in an open net. 27th June 1902. 
49° 56' S. lat.; 49 0 56' W. long. 
D. Ill, 9. A. I, 8. Sq. about 30. 
Head and body rather thick. Length of head about 3 times in total length 
without caudal. Greatest depth of body at the occiput contained 3 3 / 4 in total length 
Depth of body at the dorsal not quite 9 /io of the occipital depth. Least depth of 
caudal peduncle nearly 1 1 times in total length. Length of caudal peduncle a little 
shorter than head. Distance from snout to origin of dorsal fin equal to 3 / 4 of the 
