﻿268 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  los 
  

  

  Nephtys 
  longosetosa 
  Oersted, 
  1843 
  

  

  FlGUBE 
  30, 
  I 
  

  

  Nephtys 
  longosetosa 
  Oersted, 
  1843, 
  p. 
  195, 
  pi. 
  6, 
  figs. 
  75, 
  76. 
  — 
  Hartman, 
  1944a, 
  

   p. 
  339, 
  pi. 
  15, 
  fig. 
  7. 
  

  

  Nephthys 
  longisetosa 
  not 
  Malmgren, 
  1865, 
  p. 
  106, 
  pi. 
  12, 
  fig. 
  20. 
  — 
  Eliason, 
  1920, 
  

   p. 
  32. 
  

  

  Nephthys 
  coeca 
  Murdoch, 
  1885, 
  p. 
  153 
  (part; 
  includes 
  var. 
  longisetosa; 
  not 
  Nereis 
  

   caeca 
  Fabricius, 
  1780). 
  

  

  Nephthys 
  longosetosa 
  Fauvel, 
  1923, 
  p. 
  367, 
  fig. 
  143, 
  f-h. 
  — 
  Monro, 
  1928, 
  p. 
  82. 
  — 
  

   Annenkova, 
  1937, 
  p. 
  163; 
  1938, 
  p. 
  162.— 
  Friedrich, 
  1939, 
  p. 
  123.— 
  Berkeley 
  

   and 
  Berkeley, 
  1943, 
  p. 
  130; 
  1948, 
  p. 
  52, 
  fig. 
  76.— 
  Gorbunov, 
  1946, 
  p. 
  38.— 
  

   Wesenberg-Lund, 
  1950a, 
  p. 
  21; 
  1950b, 
  p. 
  60; 
  1951, 
  p. 
  44. 
  

  

  Nephthys 
  ciliata 
  forma 
  longosetosa 
  Augener, 
  1928, 
  p. 
  698. 
  

  

  Nephthys 
  ciliata 
  Treadwell, 
  1937, 
  p. 
  28 
  (part; 
  not 
  Nereis 
  ciliata 
  Muller, 
  1789). 
  

  

  Description. 
  — 
  Length 
  up 
  to 
  170 
  mm., 
  width 
  without 
  setae 
  6 
  mm. 
  

   Tentacular 
  cirri 
  subequal 
  to 
  antennae. 
  Notopodial 
  postsetal 
  lamellae 
  

   unequally 
  bilobed 
  (a 
  rather 
  large 
  upper 
  lobe 
  and 
  small 
  lobe 
  just 
  above 
  

   the 
  dorsal 
  cirri), 
  extending 
  slightly 
  or 
  not 
  beyond 
  the 
  acicular 
  lobes. 
  

   Neuropodial 
  postsetal 
  lamellae 
  of 
  anterior 
  region 
  rounded, 
  entire, 
  

   extending 
  beyond 
  the 
  acicular 
  lobes; 
  those 
  of 
  the 
  median 
  and 
  posterior 
  

   regions 
  large, 
  bilobed 
  or 
  irregularly 
  sinuous 
  on 
  ventral 
  side, 
  extending 
  

   well 
  beyond 
  the 
  acicular 
  lobes. 
  Color: 
  In 
  alcohol: 
  Without 
  color, 
  

   or 
  dusky, 
  especially 
  anteriorly. 
  

  

  New 
  records. 
  — 
  Arctic 
  Alaska: 
  Eluitkak, 
  Elson 
  Lagoon 
  near 
  Point 
  

   Barrow; 
  Point 
  Barrow 
  base, 
  washed 
  ashore; 
  off 
  Point 
  Barrow 
  base, 
  

   1.7-25 
  fms., 
  on 
  bottoms 
  of 
  gravel, 
  stones, 
  and 
  mud 
  (7 
  stations, 
  16 
  

   specimens); 
  Cape 
  Lisburne, 
  5-7 
  fms., 
  Dall. 
  Bering 
  Sea: 
  60°16' 
  N., 
  

   167°41' 
  W., 
  Stoney, 
  1884; 
  66°45' 
  N., 
  166°35' 
  W., 
  10 
  fms., 
  Dall, 
  1880. 
  

   Canadian 
  Arctic: 
  Duckett 
  Cove, 
  Hurd 
  Channel, 
  MelvUle 
  Peninsula, 
  

   Foxe 
  Channel, 
  Bartlett, 
  1933. 
  East 
  Coast 
  North 
  America: 
  Off 
  

   Labrador, 
  8 
  fms.. 
  Blue 
  Dolphin 
  Expedition, 
  1949. 
  

  

  Distribution. 
  — 
  Widely 
  distributed 
  in 
  the 
  Arctic: 
  Siberian, 
  Alaskan, 
  

   and 
  Canadian 
  Arctic, 
  Greenland, 
  Spitsbergen, 
  Franz 
  Josef 
  Land, 
  

   Barents 
  Sea, 
  White 
  Sea, 
  Novaya 
  Zemlya, 
  Kara 
  Sea. 
  Also 
  Iceland, 
  

   Faroes 
  to 
  France; 
  to 
  Maine; 
  to 
  Lower 
  California 
  and 
  Panamd; 
  north 
  

   Japan 
  Sea; 
  Strait 
  of 
  Magellan. 
  In 
  low 
  water 
  to 
  528 
  fathoms. 
  

  

  Figure 
  30. 
  — 
  Nereidae: 
  a, 
  Nereis 
  pelagica, 
  dorsal 
  view 
  anterior 
  end; 
  b, 
  same, 
  middle 
  para- 
  

   podium; 
  c. 
  Nereis 
  zonata, 
  middle 
  parapodium; 
  d, 
  compound 
  heterogomph 
  falciger; 
  e, 
  

   compound 
  homogomph 
  falciger; 
  /, 
  compound 
  heterogomph 
  spiniger; 
  g, 
  compound 
  homo- 
  

   gomph 
  spiniger; 
  h. 
  Nereis 
  zonata, 
  dorsal 
  view 
  extended 
  proboscis 
  showing 
  areas 
  of 
  parag- 
  

   naths; 
  i, 
  same, 
  ventral 
  view. 
  Nephtyidae: 
  /, 
  Nephtys 
  paradoxa, 
  dorsal 
  view 
  anterior 
  

   end; 
  k, 
  same, 
  middle 
  parapodium, 
  anterior 
  view; 
  /, 
  Nephtys 
  longosetosa, 
  middle 
  para- 
  

   podium, 
  anterior 
  view; 
  m, 
  Nephtys 
  discors, 
  middle 
  parapodium, 
  anterior 
  view; 
  n, 
  Nephtys 
  

   ciliata, 
  middle 
  parapodium, 
  anterior 
  view. 
  (For 
  explanation 
  of 
  symbols, 
  see 
  p. 
  210.) 
  

  

  