<4 AXEL OHLIN. ARCTIC CRUSTACEA. 



detect any diiferences wliatever between the Southern and 

 Northern form, so that I must consider them as being absolutely 

 identical. In a short notice on »A new »bipolär» Schizopodv, 

 published in the Ann. Mag. Nat. Hist. for this year (Ser. 7, 

 Vol. VII. p. 371), I have pointed out the great geographical 

 interest which is connected with this find. As I have also 

 one female at my disposal, I am here able to complete Särs' 

 description. 



I refer to this genus another very characteristic form 

 brought home by the same expedition, although it deviates 

 from it in some points. 



30. Amblyops Crozetii Willemoes-Suhm. MS. 



Amblyops crozetii Willemoes-Suhm M. S. 



1884. » » (i. O. Sars, Prelim. Not. Schizopoda »Clial- 



leiiger» Exp., 1. c. p. 30. 



1885. G. b. Sars, Schizopoda, Chall. Rep., 1. c. 

 p. 180, pl. XXXIII, tig. 11—10. 



Locality: 

 in 1900: 



stat. 29. lat. 72' 42' N.. long. 14' 49' W., between Greeuland and 

 Jan Mayeu, depth 2000 ra., clay with foraminifers, 27/VIII, 

 five spec. (4 c/'. 1 $). 



In general appearance and in nearly all details my 

 specimens perfectly agree with the description and ligures 

 given by Sars in the »Challenger? Report. I am only able to 

 lind very slight differences in a few respects. Thus, the in- 

 sinuation of the end of the telson is, in the Northern spe- 

 cimens, a little more pronounced. and the antero-lateral cor- 

 ners of the eye-scales more rounded. 



In the structure of the oral parts this species closely 

 resembles Amhhiops ahbreviata. There are, however, a few 

 differences of minor importance: the third joint of the palp of 

 the mandible is relativelj' longer than in last species; also the 

 last joint of the second pair of maxillee. is, along its exteriör 

 margin, provided with 12 ciliated bristles instead of six, as 

 Sars mentions for A. ahhreiiata. The basal joint of the lirst 

 pair of maxillij)eds has at its extremity a similar prominence 



