gathered a number of lower animals, viz., such as came into the fishinggear, 

 and seemed to occur iu multitudes, or in other ways were supposed to be of 

 greater interest to the fauna of tliese parts; but the invertebrates have not 

 been our main point, they have only been taken along with the others. — 



Though these trawUngs have given rich stores of information as to the 

 fishes and their fry in these waters, it has been possible immediately to sup- 

 plement them in other ways, by the results of the Biological Station's fisheries 

 with stake-nets and seines along the shore, as also b}' information from the 

 fishermen; and there is no doubt that future investigations, by means of still 

 larger and better gear than our trawls, will be alle to add mnch. Thus, by these 

 trawlings, we never caught a Spinax niger, an Acanthias vulgaris, a mackerel, 

 a garfsh, etc, though they live in these waters, the gear having been to small 

 to catch them. 



Of late, 1896 — 98, German as also EngHsh steam-trawlers have com- 

 menced fishing iu these seas, but they never go out deeper than c. 100 fathoms. 

 C. G. Joh. Petersen has been onboard these vessels, and a few times seen 

 their draughts. Their trawls are quite excellent, and it must be hoped that 

 such a one will be placed at the disposal of the naturalists the next time a 

 great expedition is goiug to explore the depths of the sea. On account of its 

 large meshes, however, they cannot make the other and smaller fishing-gear 

 quite superfluous. — 



The sorts of gear we have used by these investigations are chiefly otter- 

 seines (cmp. »From the Biol. Station. VIII«), some with small, some -nith 

 larger meshes; moreover, plaice-seines with meshes of various widths, and, 

 further, a so-caUed ivire-trawl, which is rather small, and wliieh, in the long 

 run, proved less suitable. By the respective trawlings fiirther information is 

 given as to the gear which has been used. — 



When the journal-numbers are not successive, it is, partly, because many 

 trawlings have failed, from some reason or other, and therefore have been 

 quite left out; partly, because several trawUngs were made on shaUow water 

 near one another, with so similar results that some of them have been omitted 

 in order not to overcrowd the map; and, fiually, because the trawUngs have 

 afterwards been arranged in another succession (to facilitate the general sur- 

 vey), than that in which they had been made. — 



For the orientation of the reader a map has been added, on which the 

 depths in the Skager Rack and the northex-n part of the Cattegat are stated, 

 as also the journal-numbers of the trawUngs. 



