1908]  Decapod Urustaceans. 41 
developed on several specimens. All these specimens are from 
northern parts of the country and from the Barentz Sea. 
In the southern parts of the country I found an ovigerous 
specimen 8 em. long which was taken in the Brevikfjord on the 
29th November. 
Thus according to the data given the breeding-season seems 
practically to agree with that of Sabinea septem-carinata. 
The largest specimen measured had å length of 72 mm. 
from the margin of the telson to the tip of the rostrum. 
Pontophilus norvegicus, M. SABrs. 
Habitat: This species is taken in large quantities in the 
deeper portions of the Norse fiords, where it resides at the same 
depths and upon bottom of the same nature as Pandalus borealis 
KR.: and it is therefore captured together with P. borealis by those 
engaged in trawling for the latter. However, though it sometimes 
happens that in å single haul several hundred individuals are secured, 
it Is never found in such quantities as Pandalus borealis: and there- 
fore partly for this reason and partly owing to its smaller size it 
has never become of economic importance. In the trawl-catches it 
is always sorted out and thrown overboard. 
Pontophilus morvegicus seems to occur most abundantly in the 
fiords in the southern parts of the country (Christiania Fiord, Brevik- 
fjord, Langesundsfjord and others: also in the fiords along the south 
coast of Norway, and the Stavanger and Bergen coasts). We have 
also material from several fiords in the northern parts of the country, 
though the numbers for any single loeality are smaller. 
Bathymetrie Distribution: The depths from which it has 
been taken in greatest abundance in the Norse fiords are from 
50—200 fathoms, and it is rarely to be found in shallower water 
than 20 fathoms. The maximum depth from which we have material 
Is 580—687 fathoms, at which depth it was taken by s/s *Michael 
Sars im 590028" N, 7950 W (st. 76, 27% 1909). 
Breeding-Season: After examination of the copious material 
of P. norvegieus Which is in the Bergen Museum, and which has 
been collected for the most part by the author as also by 
