﻿xxmong 
  the 
  rich 
  collections 
  of 
  arctic 
  Crustacea 
  in 
  the 
  zoo- 
  

   logical 
  State 
  Museum 
  at 
  Stockholm, 
  kindly 
  entrusted 
  to 
  me 
  

   for 
  examination 
  by 
  Professor 
  S. 
  Loven, 
  is 
  a 
  beautiful 
  Isopod, 
  

   the 
  object 
  of 
  this 
  note, 
  dredged 
  in 
  the 
  Baffinsbay 
  by 
  the 
  

   Swedish 
  arctic 
  expedition 
  of 
  the 
  year 
  1871. 
  

  

  Its 
  place 
  in 
  the 
  system 
  is 
  in 
  the 
  tribe 
  of 
  »Isopodes 
  mar- 
  

   cheurs» 
  of 
  Milne-Edwards, 
  and 
  the 
  subtribe 
  of 
  »Asellotes 
  

   horaopodes»^). 
  

  

  In 
  the 
  carcinological 
  system 
  of 
  Dana, 
  it 
  belongs 
  to 
  

   Isopoda 
  oniscoidea, 
  third 
  family 
  Asellidse, 
  the 
  subfamily 
  Asel- 
  

   lin«, 
  between 
  Janira 
  and 
  Asellus 
  ^). 
  

  

  In 
  the 
  system 
  of 
  Spence 
  Bate 
  and 
  Westwood 
  ^), 
  it 
  is 
  to 
  

   be 
  placed 
  among 
  the 
  Isopoda 
  normalia, 
  the 
  family 
  Asellidse, 
  

   next 
  to 
  Janira. 
  

  

  According 
  to 
  Claus, 
  it 
  should 
  be 
  referred 
  to 
  his 
  second 
  

   tribe 
  of 
  Isopoda, 
  Euisopoda, 
  and 
  the 
  fifth 
  family 
  Asellidas. 
  

   The 
  following 
  diagram 
  will 
  give 
  an 
  account 
  of 
  the 
  relations 
  

   of 
  the 
  new 
  genus. 
  

  

  O 
  H. 
  Milne-Edwards. 
  Histoire 
  naturelle 
  des 
  Crustacés 
  T. 
  III. 
  Paris 
  1840, 
  

   pag. 
  120 
  and 
  143 
  — 
  147. 
  

  

  ^) 
  United 
  States 
  Exploring 
  Expedition 
  1838 
  — 
  42. 
  Crustacea 
  by 
  James 
  

   Dana. 
  Part 
  II. 
  Philadelphia 
  1852, 
  pag. 
  716. 
  

  

  ^) 
  C. 
  Spence-Bate 
  and 
  J. 
  O. 
  Westward. 
  A 
  history 
  of 
  the 
  British 
  sessile- 
  

   eyed 
  Crustacea. 
  Vol. 
  II. 
  London 
  1868, 
  pag. 
  313. 
  

  

  