BIHANG TILL K. SV. VBT.-AKAD. HANDL. BAND 27. AFD. IV. N:0 8. 5 



robusta (Smith), Parerythrops spectahilis Gr. O. Särs, Mysideis 

 grandis (GoÉs). and 3£ysis mixta Lilljeborg. 



Thus, the number of Dccapoda and Schizopoda known 

 from the East Greenlandian seas is, by the Swedish Expe- 

 dition, raised from 11 (12?) up to 2Q (27?) species. Further 

 researches will, no doubt, still more increase their number 

 and prove that that part of the Arctic Sea is as rich in 

 crustaceans as the rest. However, it is worth while remarking 

 the stränge fäet that some species which are elsewhere rather 

 common in the Arctic, have not as yet been obtained ofl East 

 Grreenland. Such species are f. i. Hy as araneus (Linné), 

 Hyas coarctatus Leach, Eupagurus ptd)escens (Kröyer) and 

 Pandalus borealis Kröyer. Other species as Hippolyte tur- 

 gida Kröyer and Hippolyte groenlandica (J. C. Fabricius) 

 seem to be very scarce, as they were obtained at only a 

 very few stations ont of about fifty where dredgings were 

 carried on by the expeditions in 1899 and 1900. Farther 

 below, in the special description, I have remarked such 

 stränge occurrences in the geographical distribution. 



As is well known, the seas round Spitzbergen, Franz 

 Joseph Land, and Nova Zembla, have been much better ex- 

 plored, and belong, doubtless, to the best known, in a zoological 

 respect, of all parts of the Arctic Ocean. It w^ould increase 

 the length of this paper very much, if I tried to write an 

 historical review of the expeditions which have brought home 

 carcinological material from those regions. I content myself, 

 therefore, with referring the reader to the bibliography, where 

 he will find a somewhat exhaustive list of papers dealing 

 with the malacostracous fauna of those seas. 



Strangely enough, there was, however, a restricted 

 area of Barents Sea which was nearly unknown until 1898. 

 I mean the sea E. of Spitzbergen, round King Charles' Land. 

 It was only once, in 1889, that it was visited by naturalists. 

 In that year, Kukenthal and Walter spent the sunimer in 

 dredging and trawling in that sea. The material is not yet 

 fully worked out. According to Doflein 1. c. p. 323, Pfeffer 

 within a short time, is going to publish the results of his 

 examination of the Becapoda. In 1898, no less than three 

 expeditions visited the sea E. of Spitzbergen, viz. the Swedish 

 Expedition on board the »Antarctic», the German »Helgoland» 

 Expedition, and that of the Prince of Monaco on board the ^Prin- 



