﻿272 
  PROCEEDINGS 
  OF 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  103 
  

  

  slightly 
  longer 
  than 
  the 
  acicular 
  lobes; 
  they 
  are 
  shorter 
  than 
  the 
  

   conical 
  acicular 
  lobes 
  in 
  the 
  middle 
  and 
  posterior 
  regions. 
  Color: 
  

   In 
  alcohol 
  : 
  Dusky, 
  especially 
  anteriorly. 
  

  

  Remarks. 
  — 
  Augener 
  (1928) 
  indicated 
  that 
  he 
  was 
  of 
  the 
  opinion 
  

   that 
  N. 
  phyllobranchia 
  Mcintosh 
  should 
  be 
  referred 
  to 
  A^, 
  paradoxa; 
  

   Hartman 
  (1950) 
  stated 
  that 
  they 
  are 
  separable 
  by 
  only 
  slight 
  differ- 
  

   ences. 
  The 
  type 
  of 
  A^. 
  brachycephala 
  Moore 
  from 
  Japan 
  is 
  unsatis- 
  

   factory 
  (dried, 
  when 
  received); 
  the 
  description 
  is 
  in 
  agreement 
  with 
  

   N. 
  paradoxa. 
  

  

  New 
  records. 
  — 
  Arctic 
  Alaska: 
  Off 
  Point 
  Barrow 
  base, 
  up 
  to 
  12.1 
  

   miles 
  from 
  shore, 
  23.5-123.5 
  fms., 
  on 
  bottoms 
  of 
  mud 
  and 
  mass 
  of 
  

   worm 
  tubes 
  (2 
  stations, 
  3 
  specimens). 
  

  

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

   and 
  Canadian 
  Arctic, 
  Greenland, 
  Spitsbergen, 
  Norway, 
  Barents 
  Sea, 
  

   Kara 
  Sea. 
  Also 
  Iceland, 
  Faroes 
  to 
  France; 
  off 
  Delaware; 
  Japan. 
  

   In 
  3.3-4,001 
  fathoms. 
  

  

  Family 
  Glyceridae 
  

  

  Body 
  rounded, 
  elongated, 
  attenuated 
  at 
  both 
  ends, 
  not 
  divided 
  

   into 
  two 
  regions, 
  either 
  only 
  uniramous 
  or 
  only 
  biramous. 
  Segments 
  

   bi- 
  or 
  tri-annulate. 
  Prostomium 
  sharply 
  conical, 
  wide 
  basaUy, 
  with 
  

   a 
  pair 
  of 
  nuchal 
  organs, 
  transversely 
  annulated, 
  ending 
  in 
  four 
  minute 
  

   antennae 
  distally 
  (fig. 
  31, 
  a). 
  Small, 
  globular 
  dorsal 
  cirri; 
  larger 
  

   ventral 
  cirri 
  (fig. 
  31, 
  b, 
  c); 
  two 
  anal 
  cirri. 
  Branchiae 
  present 
  or 
  

   absent. 
  Notosetae 
  simple 
  capillaries; 
  neurosetae 
  compound 
  spinigers. 
  

   Proboscis 
  eversible, 
  long, 
  clavate, 
  with 
  numerous, 
  small 
  papillae 
  

   (proboscidial 
  organs) 
  and 
  four 
  dark, 
  falcate, 
  horny 
  jaws 
  each 
  with 
  an 
  

   attached, 
  embedded, 
  rodlike 
  aileron 
  (fig. 
  31, 
  d). 
  Epitoky 
  affects 
  

   entke 
  individual 
  (parapodial 
  lobes 
  become 
  more 
  elongate, 
  setae 
  longer 
  

   and 
  more 
  numerous). 
  

  

  Represented 
  by 
  a 
  single 
  species 
  from 
  Point 
  Barrow. 
  

  

  Genus 
  Glycera 
  Savigny, 
  1818 
  

   Glycera 
  capitata 
  Oersted, 
  1843 
  

  

  FiGUBE 
  31, 
  a-d 
  

  

  Glycera 
  capitata 
  Oersted, 
  1843, 
  p. 
  196, 
  pi. 
  7, 
  figs. 
  87, 
  88, 
  90-94, 
  96, 
  99.— 
  Ehlers, 
  

   1913, 
  p. 
  603.— 
  Fauvel, 
  1923, 
  p. 
  385, 
  fig. 
  151, 
  a-e.— 
  Augener, 
  1928, 
  p. 
  734.— 
  

   Monro, 
  1930, 
  p. 
  115; 
  1936, 
  p. 
  114.— 
  Annenkova, 
  1937, 
  p. 
  165; 
  1938, 
  p. 
  164.— 
  

   St0p-Bowitz, 
  1941, 
  p. 
  186, 
  fig. 
  1; 
  1948b, 
  p. 
  4.— 
  Hartman, 
  1944a, 
  pp. 
  336, 
  

   339; 
  1948, 
  p. 
  28; 
  1950, 
  p. 
  76, 
  pi. 
  11, 
  figs. 
  1-4.— 
  Gorbunov, 
  1946, 
  p. 
  38.— 
  

   Zatsepin, 
  1948, 
  p. 
  117, 
  pi. 
  31, 
  fig. 
  9.— 
  Berkeley 
  and 
  Berkeley, 
  1948, 
  p. 
  38, 
  

   fig. 
  52. 
  — 
  Hartman 
  and 
  Reish, 
  1950, 
  p. 
  20. 
  — 
  Wesenberg-Lund, 
  1950a, 
  p. 
  23; 
  

   1950b, 
  p. 
  64; 
  1951, 
  p. 
  49. 
  

  

  Glycera 
  setosa 
  Oersted, 
  1843, 
  p. 
  198, 
  pi. 
  7, 
  figs. 
  89, 
  95, 
  97 
  (epitokous 
  form). 
  

  

  