﻿296 
  PROCEEDINGS 
  OE 
  THE 
  NATIONAL 
  MUSEUM 
  vol. 
  103 
  

  

  Remarks. 
  — 
  The 
  two 
  small 
  specimens 
  from 
  Point 
  Barrow 
  (6-7 
  mm. 
  

   long) 
  follow 
  closely 
  the 
  description 
  of 
  St0p-Bowitz 
  for 
  Ophelina 
  groen- 
  

   landica, 
  including 
  size. 
  They 
  seem 
  to 
  agree 
  with 
  the 
  description 
  by 
  

   Ehlers 
  of 
  A. 
  breviata 
  from 
  the 
  Antarctic, 
  although 
  the 
  Antarctic 
  

   specimens 
  attain 
  a 
  much 
  larger 
  size 
  (29 
  mm. 
  long). 
  

  

  New 
  records. 
  — 
  Arctic 
  Alaska: 
  Off 
  Point 
  Barrow 
  base, 
  up 
  to 
  7.5 
  

   miles 
  from 
  shore, 
  29-36 
  fms., 
  on 
  bottoms 
  of 
  gravel, 
  stones, 
  large 
  

   perforated 
  rocks 
  (2 
  stations, 
  2 
  specimens). 
  

  

  Distribution. 
  — 
  ^Arctic 
  Alaska, 
  East 
  Greenland. 
  Southern 
  latitudes: 
  

   South 
  Orkney 
  and 
  Falkland 
  Islands, 
  Kaiser- 
  WUhelm 
  II 
  Land. 
  In 
  

   10-214 
  fathoms. 
  

  

  Genus 
  Travisia 
  Johnston, 
  1840 
  

   Travisia 
  camea 
  Verrill, 
  1873 
  

  

  Figure 
  33, 
  o-q 
  

  

  Travisia 
  cornea 
  Verrill, 
  1873, 
  pp. 
  431, 
  434, 
  508, 
  604; 
  1881, 
  p. 
  302, 
  pi. 
  8, 
  fig. 
  1.— 
  

   Sumner, 
  Osburn, 
  and 
  Cole, 
  1913, 
  p. 
  629.— 
  Hartman, 
  1944a, 
  pp. 
  336, 
  341, 
  pi. 
  

   19, 
  fig. 
  6 
  (as 
  probably 
  Ophelia 
  limacina). 
  

  

  Travisia 
  forbesi 
  Murdoch, 
  1885, 
  p. 
  154 
  (not 
  T. 
  forbesii 
  Johnston, 
  1840). 
  

  

  Description. 
  — 
  Length 
  up 
  to 
  59 
  mm., 
  width 
  8 
  mm., 
  segments 
  25-29 
  

   (specimens 
  washed 
  ashore 
  at 
  Point 
  Barrow 
  much 
  larger 
  than 
  any 
  

   previously 
  recorded). 
  Body 
  rounded, 
  cylindrical, 
  grub-shaped, 
  

   tapered 
  toward 
  each 
  end. 
  Segments 
  of 
  posterior 
  third 
  may 
  be 
  some- 
  

   what 
  imbricated 
  or 
  telescoped; 
  triannulate 
  in 
  middle 
  region. 
  Integu- 
  

   ment 
  with 
  granulations 
  or 
  beading 
  rather 
  uniform 
  (not 
  larger 
  on 
  

   posterior 
  part 
  of 
  segment 
  as 
  in 
  T. 
  pupa 
  Moore). 
  Prostomium 
  small, 
  

   conical, 
  acutely 
  to 
  bluntly 
  pointed, 
  without 
  eyes. 
  Branchiae 
  begin 
  on 
  

   setiger 
  2 
  (rarely 
  on 
  setiger 
  3), 
  continuing 
  posteriorly, 
  absent 
  on 
  last 
  

   four 
  or 
  five 
  segments, 
  cirriform, 
  inserted 
  posterior 
  to 
  notosetae. 
  

   Without 
  parapodial 
  lobes, 
  the 
  small, 
  slender, 
  capillary 
  noto- 
  and 
  neuro- 
  

   setae 
  emerging 
  directly 
  from 
  body 
  wall. 
  In 
  posterior 
  third 
  of 
  body, 
  

   area 
  in 
  region 
  of 
  setae 
  may 
  be 
  somewhat 
  inflated 
  but 
  without 
  enlarged 
  

   lateral 
  lobes 
  extending 
  posteriorly 
  (as 
  in 
  T. 
  forbesii 
  Johnston 
  and 
  

  

  Figure 
  33. 
  — 
  Cirratulidae: 
  a, 
  Cirratulus 
  cirratus, 
  dorsal 
  view 
  anterior 
  end; 
  h, 
  same, 
  para- 
  

   podium 
  from 
  anterior 
  region; 
  c, 
  same, 
  acicular 
  crotchet; 
  d, 
  Chaetozone 
  setosa, 
  dorsal 
  

   view 
  anterior 
  end. 
  Flabelligeridae: 
  e, 
  Flabelligera 
  affinis, 
  parapodium; 
  /, 
  same, 
  hooked 
  

   pseudoconipound 
  neuroseta; 
  g, 
  same, 
  pedunculate 
  papillae 
  — 
  (1) 
  from 
  tip 
  of 
  notopodium, 
  

   (2) 
  on 
  body; 
  k, 
  Brada 
  inhahilis, 
  ventral 
  view 
  anterior 
  end. 
  Scalibregmidae: 
  i, 
  Scalihregma 
  

   inflatum, 
  dorsal 
  view 
  anterior 
  end; 
  /, 
  same, 
  parapodium 
  from 
  middle 
  region; 
  k, 
  same, 
  

   parapodium 
  from 
  posterior 
  region. 
  Opheliidae: 
  /, 
  Ammotrypane 
  breviata, 
  ventral 
  view 
  

   anterior 
  end, 
  proboscis 
  extended; 
  w, 
  same, 
  lateral 
  view 
  middle 
  part 
  of 
  body; 
  n, 
  same, 
  

   ventral 
  view 
  posterior 
  end; 
  o, 
  Travisia 
  camea, 
  dorsal 
  view 
  anterior 
  end; 
  p, 
  same, 
  dorsal 
  

   view 
  posterior 
  end; 
  q, 
  same, 
  parapodium. 
  Capitellidae: 
  r, 
  Capitella 
  capitata, 
  dorsal 
  view 
  

   anterior 
  end; 
  /, 
  same, 
  dorsal 
  view 
  posterior 
  part 
  thoracic 
  region; 
  t, 
  same, 
  parapodium 
  

   from 
  abdominal 
  region; 
  u, 
  same, 
  hooded 
  crotchet. 
  (For 
  explanation 
  of 
  symbols, 
  see 
  

   p. 
  210.) 
  

  

  