32 G. 0. SARS. CRUSTACEA. [norw. POL. EXP. 



there are to be found some minor differences between these two forms, so 

 that it will be advisable to keep them apart. 



In the material collected during the Nansen Expedition, there are two 

 distinct varieties, the one with the eyes normally developed and probably, in 

 the fresh state, provided with light red pigment, the other with the visual 

 elements imperfectly developed, and the pigment of a whitish colour. A spe- 

 cimen of the latter variety, which may be named var. leucopis, is represented 

 on PI. VI fig. 10. Both these forms agree in other respects completely, and 

 were also found together in the same samples. 



Any more detailed description of this species, I do not consider it neces- 

 sary to give here. 



Occurrence. Numerous specimens of this form occurred in two samples 

 taken on the 4th and 13th February, 1896, near the 85th degree of latitude, 

 the tow-net having been lowered to from 50 to 130 metres. Moreover, two 

 specimens were found in another sample taken on the 21st February, 1894, 

 much farther east. 



Fam. PARAMPHITHOIDiE. 



8. Paramphithoe hrevicornis, G. 0. Sars, 



The anterior half of a specimen of this form was found in a sample 

 taken on the 4th February, 1896, near the 85th degree of latitude. 

 Distribution. Coast of Finmark, Spitsbergen, 



Fam. AMPELISCICffi. 



9. Hoploops tuhicola, Lilljeborg. 



Two specimens of this well-known form were found in a bottle containing 

 different bottom-animals taken by the aid of the trawl on the 30th October, 

 1893, at some distance north of the New Siberian Islands, the depth being 

 90 metres. 



Distribution. Coast of Norway, British Isles, coast of France, Kattegat, 

 the Baltic, Greenland, Labrador, Iceland, Spitsbergen, the Barents Sea, the 

 Kara Sea. 



