BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 27. AFD. IV. N:0 8. 21 



here to enter on a critical discussion as to how far Pagurus 

 T1iom})soni Bell, Eupayurus Kröyeri Stimpson,^ or some species 

 from Alaska recently described by Benedict^ as new species, 

 Eiq^ognrus capillatus, Eupagnrus hrandti or Eupagiirus dalli 

 are entitled to a specific rank. Tbe distinctions betvveen all 

 these forms seem to me to be of doubtful value, and the 

 whole genus is, certainly very much in need of a thorough 

 revision. I therefore, restriet myself here to what is said by 

 Stebbing in »Arctic Crustacea etc.» 1. c. p. 5. and by Doflein 

 in »Dekap. Krebse arkt. Meere», 1. c. p. 341. 



From this nncertainty, it is consequentily very difficult to 

 get an exact information as to the geograpbical distribution. 

 In its wider sense the species must be regarded as Arctic 

 and circumpolar. It bas been obtained at most places in the 

 arctic region as far as I have been able to find out in the 

 literature. It is, however, not recorded as yet from the Si- 

 berian Polar Sea, Franz Joseph Land, or the Kära Sea. Nor 

 does it seem to occur on East Greenland, and, as to its 

 occurrence in the Polar Archipelago of North American, we 

 have no information. It has also not been taken in Smith 

 Sound, and this fact, in connection with its non-occurrence 

 in the above mentioned regions seems to indicate that it does 

 not belong to the Polar basin. The most southern places 

 where it has been obtained are as follows : Bohuslän (Sweden), 

 Kattegat, England, New Jersey, in lat. 40 N,, long. 73 W., 

 and Puget Sound. ^ 



In my collections there are several large specimens, and 

 it seemed to thrive especially in Recherche Bay, West Spitz- 

 bergen. I have one specimen befor e me from that locality, 

 which measures: 



. length of carapace 25 mm. 



» » rigth hand 45 » 



» » left » 34 » 



The specimens collected by Mr. Wulff in Tromsö are 

 of a much smaller size. 



^ Eupagtirns trigonocheirus Stimpson. 



^ Benedict, Thirty-seven new species etc. 1. c. p. 8. 



•■' Its vertical distribution is from several fathoms up to 100 or more. 

 In regard to two finds of this in 140 and 290 fathoms resp. Hansen is 

 somewhat dubious as to the exactness of these depths. 



