BIHANG TILL K. SV. VET.-AKAD. HANDL. BAND 27. AFD. IV. N:0 8. 29 



temperature of the water in the .seas E. of Spitzbergen and 

 of East Greenland is more or less about zero, varying sorae- 

 what from + 2° C, to — 1,5° C. and the same, I think, will 

 be proved to be the case ofF East Greenland, when the hydro- 

 graphical observations made during the Swedish Expeditions 

 have been summarized. This temperature corresponds, on the 

 whole, very well with those in the greater depths of the 

 ocean. Only in water of that temperature Sclerocrangon ferox 

 has been found, while the type species seems to live in water 

 of somewhat higber temperature. I fully admit, however, 

 that this does not afFord a quite satisfactory explanation, 

 for it will be difficult to account for that in Smith Sound, 

 for instan ce, where a strong Arctic current runs southwards, 

 Sclerocrangon boreas is rather abundant, while the other one 

 is wanting. 



The greatest depth from which this species has been 

 dredged is, I believe, 1000 m. (station north of Spitzbergen, 

 Helgoland Expedition). 



Sclerocrangon ferox rivals preceding species also in regard 

 to size. 



Length of the greatest spec. (from stat. 37, 1899) 121 mm. 



Crangon Fabricius 1798. 

 7. Crangon AUmanni KlNAHAN. 



? Crangon AUmanni KlNAHAN, Proc. Nat. Hist. Soc, Dublin, 



Vol. II (cited after Kinahan). 

 1862. » (Steiracrangon) AUmanni idem, On the Brit. Spec. 



of Crangon and Galathea etc, 1. c. p. 65, pl. III. 

 1890. » AUmanni G. O. Sars, Decapodernes Forvandlinger, 



1. c. p. 135, tab I, fig. 29—31. 

 1897. » AUmanni BiRULA, Essai d'une faune des crustacés 



décapodes etc, 1. c. p. 430, tab. XX, fig. 5. 

 1900. ' allmanni DOFLEIN, Dekap. Krebse arkt. Meere, 1. c. 



p. 326. 



Locality: 

 in 1899. 



stat. 1. lat. er 16' N,. long. V 18' E., depth 150 m., sand, some 

 stones and dead shells, 31/V, seven spec. 



