( 545 ) 
Remark. The cod penetrates very far into the Baltic Sea. We do not mean 
to assert that individuals caught in the Bothnian gulf and not larger than 45—50 
centimetres have swum in from the Atlantic. They may very well belong to local 
races, propagating in the brackish water and which do not reach a greater length. 
Near Stockholm the cod only reaches a length of 60 centimetres, in the Sound 
80 to 90 cm. at the utmost, on the coast of Bohuslin 90 cm., but near the 
Lofoden Islands even 140 to 150 em, Also the common mussel is much smaller 
in the brackish water of the eastern parts of the Baltic sea than in the more salt 
containing sea. 
In the Gulf of Bothnia the percentage is in summer north of the Quarks 
3— 40/0, 40.159 to 0.212, Py 1.9 to 2.54 atm., north of Stockholm resp. 5°/o9, 
0°.265, 3.18 atm., at Stockholm 69, 0°.318, 4 atm., on the north coast of 
Gothland 7°/9), 0°.37, 4.45 atm., and till Riigen—Schonen 7 to 8°/o9, 0°.424, 5 atm. 
At Bohuslän the salinity of the surface is in summer 13/9, A= 09.69, but in 
the depth North sea water occurs of 32 to 33%/, and 1.8°. 
A 
Gadus aeglefinus L. Haddock. 0.767 Leyden, summer, spec. were dead but fresh, 
Remark. The haddock does not penetrate further than the Mecklenburg coast. 
A 
Gadus virens L., Coalfish, Green Cod 0.760 Bergen. 
3 = 0.761 = 3 spec. 
7 5 0.837 5 Ss 
i 5 0.338 ‘ 
Remark. Gadus virens does not penetrate further than the bay of Kiel and is 
rare there. In the fishmarkel at Bergen it is always supplied in large quantities 
but generally in a bad condition, showing wounds and traces of having bled, 
many specimens lie on their backs at the surface and breathe little. When a 
purchase was made good specimens were selected, but I think it very probable 
that the animals whose blood froze at — 0°.837 and — 0°.838 were abnormal. 
Gadus merlangus, L. Whiting 0.760 Bergen. 14 spec. 
Remark. The whiting enters the Baltic Sea with difficulty, about as far as 
Bornholm. Only once it has been caught near Gothland. 
A 
Molva vulgaris, Flemm. Ling, 0.716 Bergen. 3 fine spec. 
Remark. The ling no more than G. virens penetrates into the Baltic Sea. 
A 
Moiva byrkelange (Walb.), Trade Ling, 0.730 Bergen, 4 fine spec. were dead 
but fresh. 
Remark. Deep sea fish, not to be had alive. Had been caught at a depth of 
400 metres. Does not come further than the Cattegat. 
A 
Motella tricirrata (Bloch), Whistler, 0,605 Bergen. 
Remark. Motella tricirrata has only once been caught near Göteborg 
