Ichthyologiske notiser I. 69 
to solve the questions definitely. 1. Paraliparis bathybii and 
Rhodichthys regina are bathypelagic species, which in spawning- 
time seek the bottom, especially along the deeper part of the 
slopes of the Norwegian Sea, for depositing the eggs. 2. The 
said species are entirely of bathypelagic habits, gathering in 
shoals at spawning-time. These two explanations both cover the 
facts known at present. 
The method of research, towing horisontally several applian- 
ces simultaneously on the same wire has been devised by dr. 
HJORT on the cruises of the "Michael Sars”. The method has 
the drawback that the exact depth of each gear is not known. 
HJORT (1912) calculates the depth to one-half of the length of 
wire to the gear. In the following I use the calculation two- 
thirds of the length of wire, trusting to some experiences which 
I had during a cruise with the "Arm. Hansen” in 1914. On 
stat. 4 the following gears were used: Net 200 m. wire, young- 
fish trawl 500 m. w., net 800 m. w., net 1000 m. w. and young- 
fish trawl 1200 m. wire. The lowermost young-fish trawl came 
onboard full of clay. Depth to bottom 770 metres. On stat. 3 
where five appliances were towed simultaneously, the lowermost 
gear, a young-fish trawl with 2000 m. wire out likewise was fil- 
led with clay. Exact depth to bottom not known but may be 
estimated at abt. 1400 metres, — taking the medium depth of 
the two nearest hydrographical stations, one farther out at sea 
1743 m., one nearer land 1060 metres. Whether these experiences 
may be generalized or not I shall not discuss here as this will 
be done in my paper on the results of the “Arm. Hansen” expedi- 
tion 1913 above-mentioned. 
In the following I intend to give a somewhat complete sum- 
mary of the Norwegian text on those species which may be of 
some general interest; for other species where only new finds 
etc. are recorded I may refer to the Norwegian text. 
Sparus centrodontus (De la Roche). This species seems 
not to be rare in the outer fjords of Western Norway; it also 
enters the Sognefjord and the Hardangerfjord. Specimens are 
known from all months of the year, most frequently met with, 
however, during summer and autumn and occasionally occurring 
in such a number as to be brought for sale at the Bergen fish- 
