In presenting to tlie scientific world the 1st Volnme of the great work on Norwegian Crustacea, which I have entered upon, Twish to niake the following observations about the plan of the work in general, and especially that of the present Volume. The author, who during a long series of years has been engaged by the government to make investigations about the sea-fisheries of Norway, and for this purpose has made numerous journeys of research along the whole Norwegian coast, from the Christianiafjord to Vadso, has thereby had an nnusually convenient opportunity for at the same time studying the ricli marine invertebrate fauna occurring along that extensive coast, and has especially made himself familiar witli the several groups of Crustacea, which had long before been his special study. A very large amount of zoological material has thus fi om time to time been brought together from many different localities, and among this material have been found numerous interesting forms new to science. Most of the new Crustacea have been briefly characterised by the author in several papers, chiefly published in the Transactions of the Scientific Society of Christiania, and a few groups, for instance the Wlitiidfr. have also been more fully treated of in separate treatises. It has, however, appeared to the author very desirable, that a full account of the rich carcinological fauna of Norway should be given, like that of the British Crustacea long ago published by several distinguished carcilogists, botli because sucli faunistic works have on the whole shown themselves to be extremely useful, and because the fauna of Norway, as is well known, belongs to two distinct zoological regions, the boreal and arctic, and thus exhibits characteristic differences from that of tlie British I sles, I ndeed, the author has long felt it as a veritable duty, by entering upon a such woi k
(Typographical errors above are due to OCR software and don't occur in the book.)
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