﻿from 
  the 
  North 
  Sea 
  and 
  adjacent 
  parts. 
  2G9 
  

  

  much 
  less^ 
  and 
  in 
  having 
  a 
  more 
  decided 
  decrease 
  in 
  hoth 
  

   posterior 
  lamella?. 
  This 
  aiuielid, 
  according 
  to 
  the 
  Mono- 
  

   graph, 
  is 
  merely 
  a 
  younger 
  stage 
  in 
  the 
  growth 
  of 
  N. 
  hom- 
  

   herfjii. 
  

  

  From 
  Heinen's 
  Karte 
  1 
  N. 
  homhergii 
  is 
  seen 
  to 
  iiave 
  a 
  

   wide 
  distribution, 
  varying 
  from 
  53° 
  52' 
  to 
  59° 
  9' 
  N., 
  and 
  

   1° 
  21' 
  to 
  almost 
  8° 
  E! 
  From 
  the 
  ' 
  Goldseeker 
  ' 
  collection, 
  

   however, 
  this 
  annelid 
  is 
  confined 
  to 
  the 
  neighbourhood 
  of 
  the 
  

   Shetland 
  Isles. 
  

  

  Neplithys 
  incisa, 
  Malmgren, 
  1865. 
  

  

  Haul 
  -8215 
  alone 
  contained 
  this 
  annelid, 
  when 
  eight 
  speci- 
  

   mens 
  were 
  obtained. 
  The 
  animals 
  were 
  small, 
  the 
  largest 
  

   nunibeiing 
  about 
  50 
  segments. 
  The 
  haul 
  was 
  made 
  at 
  

   Station 
  8, 
  61° 
  35' 
  N., 
  0° 
  21' 
  E., 
  but 
  the 
  depth 
  at 
  which 
  they 
  

   were 
  obtained 
  is 
  not 
  given. 
  In 
  the 
  ^Porcupine 
  ' 
  Expedition, 
  

   1869, 
  this 
  annelid 
  was 
  found 
  from 
  6—80 
  fathoms. 
  In 
  one 
  

   the 
  proboscis 
  was 
  extruded 
  and 
  showed 
  twenty-two 
  rows 
  of 
  

   minute 
  papilla? 
  ; 
  but 
  the 
  short 
  median 
  cirrus, 
  which, 
  according 
  

   to 
  Mahngren, 
  occurs 
  in 
  the 
  smooth 
  distal 
  region 
  both 
  dorsally 
  

   and 
  ventially, 
  was 
  not 
  seen. 
  On 
  the 
  branchiae 
  were 
  struc- 
  

   tures 
  resembling 
  minute 
  Loxosomce, 
  but 
  the 
  parasites 
  were 
  

   too 
  contracted 
  to 
  make 
  out 
  their 
  structure 
  properly. 
  No 
  

   specimen 
  was 
  mature, 
  and 
  the 
  gut 
  showed 
  sand 
  and 
  sponge- 
  

   spicules. 
  

  

  There 
  is 
  no 
  mention 
  of 
  this 
  annelid 
  in 
  the 
  ' 
  Challenger 
  ' 
  

   Reports 
  nor 
  in 
  'Errantiate 
  Polychasta 
  of 
  Japan,' 
  but 
  Heiiien 
  

   obtained 
  several 
  at 
  vaiious 
  stations 
  in 
  the 
  German 
  North 
  

   !S(a. 
  The 
  most 
  northerly 
  point 
  at 
  which 
  he 
  obtained 
  this 
  

   annelid 
  was 
  57° 
  52' 
  N., 
  4° 
  52' 
  E. 
  ; 
  but 
  the 
  ' 
  Goldseeker 
  ' 
  

   dredged 
  it 
  at 
  Station 
  8, 
  61° 
  35' 
  N., 
  0° 
  20' 
  E. 
  

  

  Neplithys 
  ciliata, 
  0. 
  F. 
  Miiller, 
  1789. 
  

  

  This 
  annelid, 
  from 
  various 
  reports, 
  is 
  common 
  on 
  muddy 
  

   ground 
  or 
  in 
  sandy 
  mud, 
  but 
  only 
  one 
  specimen 
  is 
  present 
  in 
  

   the 
  collection. 
  O. 
  F. 
  Miiller 
  procured 
  it 
  in 
  the 
  first 
  instance 
  

   from 
  the 
  Faioe 
  Islands, 
  but 
  it 
  stretches 
  to 
  Greenland 
  and 
  to 
  

   tlie 
  eastern 
  Canadian 
  waters, 
  as 
  well 
  as 
  to 
  America. 
  Mahn- 
  

   gren 
  records 
  it 
  from 
  Spitzbergen, 
  Scandinavia, 
  and 
  Iceland 
  ; 
  

   Ehlers, 
  both 
  shores 
  of 
  the 
  Atlantic 
  ; 
  and 
  Theel 
  gives 
  Kara 
  

   Sea 
  and 
  Nova 
  Zembla. 
  It 
  is 
  not 
  mentioned 
  in 
  the 
  ' 
  Chal- 
  

   lenger 
  ^ 
  Reports, 
  but 
  Prof. 
  Izuka 
  notes 
  it 
  as 
  occurring 
  in 
  

   Japanese 
  waters, 
  lleinen, 
  too, 
  has 
  no 
  record 
  of 
  it 
  in 
  iiis 
  

   North 
  Sea 
  Collection, 
  but 
  remarks, 
  " 
  AUe 
  mir 
  vorliegenden 
  

   Tiere 
  stammten 
  aus 
  Ostsee 
  und 
  Kattegat." 
  

  

  