60 AXEL OULIN, AUCTIC CRU8TACEA. 



important characteristics oi Faudalus. Caullery was the first 

 who called attention to the fact that, amongst the trne Fandulids, 

 there is an exception to this rule. In his paper on »Crustacés 

 Schizopodes et Décapodes» de la Campagne du »Caudau» dans 

 le Golfe de Gascogne, 1. c. p. 379, he has described a new 

 species provided with minute chelse on the first pair of perei- 

 opods. On this character he established with full right a 

 new subgenus Dichelopandalus, but, at the same time, he 

 suspeets that this chela may also be found among other spe- 

 cies. His advice to keep a look-out for such species has been 

 followed by Calman, who was able to state the existence of 

 such in no less than seven other species.^ Also in Pandalus 

 horealis he found a chela. In fig. 2 I ha ve figured it. Strictly 

 speaking, this species should therefore be included in the 

 genus Dichelopandalus, but as there is good reason to believe 

 that, on a closer examination, still more species will be found 

 to possess this characteristic (which, after the finds of Calman, 

 does not seem to be of a very high generic value) I prefer 

 to retain the old name. 



Distribution: West Grreenland np to 70 40' N. (Hansen), 

 East coast of North America, Behring Sea, Barents Sea, 

 Spitzbergen, Norway, south to Cattegat. It is generally con- 

 sidered to be a true arctic and circumpolar species; but I 

 only wish to call attention to the fact that, during our three 

 last Swedish Expeditions, as seen above, it was not obtained 

 either E. of Spitzbergen, or along the coast of East Greenland, 

 whereas it was taken in considerable numbers in suitable 

 depths, off West Spitzbergen. Also, during the Grerman ex- 

 peditions on board ;>Helgoland and >01ga>, it was onl}^ ob- 

 tained in Ice Fiord, the Hinlopen Strait, and at the entrance 

 of the White Sea. In none of mj^ stations was the bottom 

 temperature below zero, and all are situated within the area 

 where the Gulf Stream prevails. Even Hinlopen Strait is, at 

 least in some years, influenced by this warm current, as is already 

 shown by Walther and Kukenthal. It is a very remarkable 

 fact that neither I nor Schaudine nor Eömer obtained any 

 single specimen farther eastwards, round King Charles Land, 

 during our numerous trawlings; but, at least in the summer 

 of 1898, the bottom temperature was, in that tract of the 



' Calhan, on the British Pandalidce, 1. c. p. 28. 



