74 Alt Wollebæk. [No. 12 
has taken a specimen at Mosterhavn, the mouth of the Hardanger 
fiord, as well as å number of specimens at Florø (about 100 fathoms). 
In the Trondhjem fiord å specimen has been taken by curator STorM. 
With these exceptions this species in the mature state was unknown 
from the Norse coast. 
Partly owing to the numerous plankton researches in recent 
years and partly owing to the use of the prawn-trawl Sergestes 
aretieus has subsequently shown itself to be far less uncommon in 
Norse waters than was formerly supposed. 
In the inner part of the Hardanger fiord several specimens were 
taken pelagic by s/s "Michael Sars” in 1906 at a depth of 860 
meters: and when seraping the bottom with å prawn-trawl, at about 
50—100 fathoms, I have found them in other western fiords —Radø- 
fjord near Bergen and Nordalsfjord near Florø north of Bergen. 
Although these prawns have been taken with the prawn-trawl, when 
seraping the bottom. the species should be regarded as pelagic and 
not as å true bottom-form. When hauling the trawl, it is drawn 
through the whole section of water from the bottom to the surface, 
and brings up with it whatever it meets there. (Consequently it is 
quite a possibility that the specimens of Sergestes may have been 
thus caught, and not taken down below on the soft muddy bottom 
where the trawl is usually dragged. 
