66 | Sigurd Johnsen. 
tions of life in such a fjord might be favourable for some Atlan- 
tic deep-sea organisms, just as we along our west coast in shal- 
low waters have some Atlantic representatives. It must, however, 
be borne in mind that the Atlantic water of the fjord originates 
from the upper layers of the Atlantic, having at first passed the | 
Wywille-Thomson ridge (abt. 500 metres below the surface), after- 
wards the barrier at the mouth of the fjord and than filled up 
the deep basin of the fjord. It is therefore not probable that 
many Atlantic forms have found their way to the fjord. This is 
especially so in regard to the fishes. Quite a number of Atlan- 
tic species among the fishes are known from our waters, both 
pelagic ones as the genera Myctophum and Argyropelecus and 
bottom-fishes from moderate depths. Even if some of these 
individually may thrive in our waters, numerically they are 
too few to produce a stationary stock. This is rather to be 
expected to be the case with the evertebrates which as adult or 
larvae are planktonic and when occurring on our coast are 
generally abundant. The material in the Bg. M. only gives some 
few data concerning the fishes of the Sognefjord; these are recor- 
ded under the species here treated of. On a short cruise with 
the "Armauer Hansen” in May 1917 some few more were col- 
lected. A catch with prawn-trawl in the innermost part, the 
Lerdalsfjord, at 300 metres contained specimens of Glyptocepha- 
lus cynoglossus, Raja oxyrrhynchus and Etmopterus spinax. On 
two stations at Balholm and Kaupanger five pelagic appliances 
were towed simultaneously in various depths, eggs and larvae of 
Argentina silus and three adult specimens of Myctophum glaciale 
being captured.’) This lastnamed species, generally believed to 
be most rare in our waters, has, during the investigations of 
later years, frequently been met with, as will be shown in a 
special forthcoming paper. 
The fish fauna of the Norwegian Sea, spel of the cold 
basin of this area, is poor in species and further investigations 
will probably not add many to the list of species known at 
present. The operations have, however, mainly been carried out 
by means of dredge and trawl and the towing of nets in the 
1) The appliances towed at 600—1000 m. depth collected many great 
and small specimens of the meduse Periphylla hyacinthina, one of the most 
characteristic forms of the intermediate depths of the Atlantic. 
