BIUANG TILL K. SV. VET.-AKAD. HANDL. BAND 27. AFD. IV. N:0 8. 71 



The species was described after a single specimen (a 

 male) obtained during the Norwegian North Atlantic Ex- 

 pedition in lat. 79' 59' N., long. 5 40' E. from a depth of 

 839 metres. Two other localities are recorded by Hansen 

 for this species, viz. lat. 69' 15' N., long. 52 55' W., and 

 lat. 75 2()' N., long. 67° 27' W., both, thus, situated, in the 

 northern part of Baffin Bay. The depths were 265 and 260 

 fathoms resp. I have not been able to find any other records 

 of its occurrence. It may, therefore, be regarded as an inhabi- 

 tant of the deep-sea of the Atlantic part of the Arctic Ocean. 



The oral parts do not deviate from the structure, which 

 is to be found in the type species, viz. Boreomysis arctica 

 (Kröyer) as described and figured by Särs in his »Carcinolo- 

 giske Bidrag». The molar part of the mandible, the maxillee 

 and the maxillipeds closely agree with the corresponding parts 

 in the said species, but deviate more from those in the following 

 species. The last joint of thepalp of the mandible slightly de- 

 viates as may be seen by comparing Särs' and my own figures of 

 it. As Särs' specimen of Boreomysis nohilis had the uropoda 

 somewhat mutilated, I give herewith a figure of them. 



Length of largest male 45 mm. 

 > » female 49 mm. 



29. Boreomysis scyphops G. O. Sars. 

 Petalophthalmus iueriiiis Willemoes-Suhm MS. 



1870. Ijoreomysis scyphops G. O. Sars, Crust. et Pycnogou. nova 



etc, 1. c. p. 429. 



G. O. Sars, Prelimin. Not. Schizop. 

 Chall. Exp., I. c. p. 34. 

 G. O. Sars, Norweg. North Atl. Exp. I., 

 p. 56, pl. 6. 



G. O. Sars, Schizopoda, Chall. Rep., 

 1. c. p. 178, pl. XXXII, fig. 10—20. 



long. 8' 41' E., vSwedish Depth», depth 

 2700 m., bottom temp. — 1,4 C, Biloculina clay, 25/VII, 

 six spec. (more or less mutilated). 

 27. lat. 77° .52' X., long. 3' 5' W., 40 miles S.W. of the 

 'Swedish Depth», depth 2750 m., bottom temp. — 1,4° C, 

 Biloculina clay, 2 9 /VII, two spec. 



