﻿MARINE 
  POLYCHAETE 
  WORMS 
  — 
  PETTIBONE 
  233 
  

  

  Key 
  to 
  the 
  species 
  of 
  Eteone 
  from 
  Point 
  Barrow 
  

  

  1. 
  Proboscis 
  with 
  2 
  lateral, 
  longitudinal 
  rows 
  of 
  numerous 
  soft 
  papillae. 
  Dorsal 
  

  

  pair 
  tentacular 
  cirri 
  slightly 
  longer 
  or 
  up 
  to 
  2-3 
  times 
  longer 
  than 
  ventral 
  

   pair. 
  Dorsal 
  cirri 
  wider 
  than 
  long, 
  nearly 
  symmetrical, 
  subcircular 
  or 
  

   slightly 
  lanceolate 
  (fig. 
  27, 
  e). 
  Color 
  in 
  alcohol: 
  Darkly 
  pigmented 
  with 
  

   bluish-violet 
  iridescence, 
  with 
  longitudinal, 
  lighter 
  colored 
  bands 
  on 
  each 
  

   side 
  of 
  median 
  dorsal 
  line 
  (or 
  3 
  dorsal 
  longitudinal 
  dark 
  bands 
  — 
  1 
  median 
  

   and 
  2 
  lateral). 
  Anal 
  cirri 
  subcylindrical, 
  3-4 
  times 
  longer 
  than 
  wide. 
  

  

  Second 
  segment 
  with 
  setigerous 
  lobe 
  and 
  setae 
  well 
  developed 
  E. 
  barbata 
  

  

  Surface 
  of 
  proboscis 
  smooth, 
  rugose 
  or 
  irregularly 
  papillate. 
  Two 
  pairs 
  ten- 
  

   tacular 
  cirri 
  subequal 
  or 
  ventral 
  pair 
  somewhat 
  longer 
  than 
  dorsal 
  pair 
  — 
  2 
  

  

  2. 
  Dorsal 
  cirri 
  small, 
  not 
  much 
  larger 
  than 
  parapodial 
  lobes, 
  longer 
  than 
  or 
  as 
  

  

  long 
  as 
  wide, 
  almost 
  symmetrical, 
  thick, 
  flattened, 
  bluntly 
  conical 
  (fig. 
  27, 
  

   h). 
  Anal 
  cirri 
  short, 
  thick, 
  almost 
  spherical. 
  Second 
  segment 
  with 
  seti- 
  

   gerous 
  lobe 
  and 
  setae 
  well 
  developed 
  E. 
  longa 
  

  

  Dorsal 
  cirri 
  much 
  larger 
  than 
  parapodial 
  lobes, 
  v/ider 
  than 
  long 
  3 
  

  

  3. 
  Dorsal 
  cirri 
  slightly 
  asymmetrical, 
  oval 
  (fig. 
  27, 
  g). 
  Color 
  in 
  alcohol: 
  Dorsum 
  

  

  brownish 
  with 
  bluish-violet 
  irridescence. 
  Anal 
  cirri 
  short, 
  thick, 
  almost 
  

   spherical. 
  Second 
  segment 
  with 
  setigerous 
  lobe 
  and 
  setae 
  well 
  developed. 
  

  

  E. 
  flava 
  

   Dorsal 
  cirri 
  much 
  wider 
  than 
  long 
  (about 
  2.5 
  times), 
  asymmetrical, 
  obliquely 
  

   oval, 
  with 
  lower 
  part 
  larger 
  than 
  upper 
  part 
  (fig. 
  27, 
  /). 
  Color 
  in 
  alcohol: 
  

   Middle 
  third 
  of 
  dorsum 
  light 
  brownish, 
  lateral 
  third 
  deep 
  reddish 
  brown. 
  

   Anal 
  cirri 
  elongate, 
  cylindrical, 
  3-4 
  times 
  longer 
  than 
  wide. 
  Second 
  segment 
  

   with 
  setigerous 
  lobe 
  and 
  setae 
  poorly 
  developed 
  or 
  lacking. 
  

  

  E. 
  spetsbergensis 
  

  

  Subgenus 
  Mysta 
  Malmgren, 
  1865 
  

   Eteone 
  {Mysta) 
  barbata 
  (IVIalmgren, 
  1865) 
  

  

  Figure 
  27, 
  e 
  

  

  Mysta 
  barbata 
  Malmgren, 
  1865, 
  p. 
  101, 
  pi. 
  15, 
  fig. 
  34; 
  1867, 
  p. 
  26, 
  pi. 
  3, 
  fig. 
  20.— 
  

   Bergstrom, 
  1914, 
  p. 
  207, 
  fig. 
  79.— 
  Southern, 
  1914, 
  p. 
  75.— 
  Eliason, 
  1920, 
  

   p. 
  28.— 
  Augener, 
  1928, 
  p. 
  711; 
  1939, 
  p. 
  136.— 
  Zatsepin, 
  1948, 
  p. 
  113, 
  pi. 
  29, 
  

   fig. 
  14. 
  — 
  Wesenberg-Lund, 
  1951, 
  p. 
  31. 
  

  

  Eteone 
  striata 
  Ditlevsen, 
  1917, 
  p. 
  66, 
  pi. 
  5, 
  figs. 
  11, 
  17, 
  19. 
  

  

  Eteone 
  (Mysta) 
  barbata 
  Fauvel, 
  1923, 
  p. 
  176. 
  — 
  Annenkova, 
  1937, 
  p. 
  159; 
  1938, 
  

   p. 
  146.— 
  Berkeley 
  and 
  Berkeley, 
  1942, 
  p. 
  190.— 
  Thorson, 
  1946, 
  p. 
  62, 
  fig. 
  

   27, 
  A-B. 
  

  

  Description. 
  — 
  Length 
  42-180 
  mm.; 
  width 
  without 
  setae 
  2.5-7 
  mm. 
  

   See 
  key. 
  Color: 
  In 
  life: 
  Three 
  iridescent, 
  brownish-purple 
  dorsal 
  

   longitudinal 
  bands, 
  median 
  and 
  lateral. 
  

  

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

   Point 
  Barrow, 
  stony-mud; 
  off 
  Point 
  Barrow 
  base, 
  6.1-27 
  fms., 
  up 
  

   to 
  3.2 
  miles 
  from 
  shore, 
  on 
  bottoms 
  of 
  mud, 
  gravel, 
  stones, 
  rocks; 
  

   also 
  caught 
  in 
  trap 
  on 
  bottom 
  (3 
  stations, 
  4 
  specimens). 
  

  

  