58 EINAR LÖNNBERG, (Schwed. Südpolar-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 tlie abdominal cavity the loops mentioned run almost 

 straight. In some species the regularity is less pronounced. In one specimen of 

 N. macroc. inannorata, 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 Clianipsoceplialus gimnari 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 Harpagifcr. 



Pelagic and benthopelagic fishes. 



The Expedition could not afiord 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 larvje 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. Melamphaes (Plectromus) nordenskjöldii n. sp. 



1 specimen from a depth of 2,700 m. caught in an open net. 27th June 1902. 

 49" 56' S. lat.; 49' 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 33/4 in total length 

 Depth of body at the dorsal not quite ^jio 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 V4 of the 



