﻿MARINE 
  POLYCHAETE 
  WORMS 
  — 
  PETTIBONE 
  217 
  

  

  Eunoe 
  clarki 
  Pettibone, 
  1951 
  

  

  Eunoe 
  clarki 
  Pettibone, 
  1951, 
  p. 
  44, 
  fig. 
  1. 
  

  

  Description. 
  — 
  ^Length 
  36-38 
  mm., 
  width 
  including 
  setae 
  12 
  mm. 
  

   Segments 
  40 
  or 
  41. 
  Body 
  linear-oblong, 
  tapered 
  slightly 
  anteriorly 
  

   and 
  posteriorly. 
  Prostomium 
  without 
  cephalic 
  peaks 
  ; 
  anterior 
  pair 
  of 
  

   eyes 
  anterolateral. 
  Antennae 
  and 
  dorsal 
  cirri 
  with 
  short, 
  clavate 
  

   papillae. 
  Elytra 
  nearly 
  cover 
  dorsum, 
  with 
  conical 
  micro 
  tubercles, 
  

   without 
  fringe 
  of 
  papillae. 
  Color: 
  In 
  alcohol: 
  Middorsum 
  trans- 
  

   versely 
  banded 
  grayish 
  green; 
  elytra 
  greenish 
  gray, 
  with 
  a 
  darker 
  

   mottled 
  pattern 
  on 
  most 
  of 
  the 
  exposed 
  parts, 
  with 
  a 
  darker 
  spot 
  

   medial 
  to 
  a 
  lighter 
  area 
  over 
  the 
  elytophore; 
  dorsal 
  cirri 
  with 
  pig- 
  

   mented 
  bands 
  basally 
  and 
  subterminally. 
  

  

  New 
  record. 
  — 
  Arctic 
  Alaska: 
  Point 
  Barrow 
  base, 
  washed 
  ashore, 
  

   October 
  17, 
  1949 
  (2 
  specimens). 
  

  

  Distribution. 
  — 
  Arctic 
  Alaska. 
  

  

  Eunoe 
  nodosa 
  (Sars, 
  1860) 
  

  

  Figure 
  26, 
  c 
  

  

  Polynoe 
  nodosa 
  Sars, 
  1860, 
  p. 
  58. 
  

  

  Eunoe 
  nodosa 
  Malmgren, 
  1865, 
  p. 
  64, 
  pi. 
  8, 
  fig. 
  4. 
  — 
  Fauvel, 
  1923, 
  p. 
  51, 
  fig. 
  18, 
  

  

  a-e 
  (part).— 
  Annenkova, 
  1937, 
  p. 
  149; 
  1938, 
  p. 
  134.— 
  Treadwell, 
  1937, 
  p. 
  

  

  27.— 
  Friedrich, 
  1939, 
  p. 
  122.— 
  Berkeley 
  and 
  Berkeley, 
  1942, 
  p. 
  187; 
  1943, 
  

  

  p. 
  129.— 
  Hartman, 
  1944a, 
  pp. 
  334, 
  337.— 
  Gorbunov, 
  1946, 
  p. 
  38.— 
  Zatsepin, 
  

  

  1948, 
  p. 
  107, 
  pi. 
  28, 
  fig. 
  7. 
  

   Eunoa 
  nodosa 
  Malmgren, 
  1867, 
  p. 
  6. 
  — 
  Webster 
  and 
  Benedict, 
  1884, 
  p. 
  700; 
  1887, 
  

  

  p. 
  708.— 
  Mcintosh, 
  1900, 
  p. 
  291, 
  figs. 
  

   Polynoe 
  scabra 
  Th^el, 
  1879, 
  p. 
  7.— 
  Wir6n, 
  1883, 
  p. 
  387, 
  pi. 
  28, 
  fig. 
  2; 
  pi. 
  29, 
  fig. 
  

  

  1 
  (part; 
  not 
  pi. 
  28, 
  fig. 
  1; 
  not 
  Aphrodita 
  scabra 
  Fabricius, 
  1780). 
  

   Polynoe 
  islandica 
  Hansen, 
  1882, 
  pp. 
  17, 
  24, 
  pi. 
  1, 
  figs. 
  15-21.— 
  Murdoch, 
  1884, 
  

  

  p. 
  152. 
  

   Polynoe 
  arctica 
  Hansen, 
  1882, 
  pp. 
  21, 
  27, 
  pi. 
  3, 
  figs. 
  1-5. 
  

   Polynoe 
  spinulosa 
  Hansen, 
  1882, 
  p. 
  28, 
  pi. 
  1, 
  figs. 
  6-10. 
  

   Polynoe 
  foraminifera 
  Hansen, 
  1882, 
  pp. 
  21, 
  23, 
  29, 
  pi. 
  1, 
  figs. 
  11-14. 
  

   Harmothoe 
  nodosa 
  Moore, 
  1902, 
  p. 
  271. 
  — 
  Ditlevsen, 
  1917, 
  p. 
  6, 
  pi. 
  3, 
  fig. 
  10 
  (part; 
  

  

  not 
  pi. 
  2, 
  fig. 
  1).— 
  Augener, 
  1928, 
  p. 
  684 
  (part) 
  .— 
  Wesenberg-Lund, 
  1950a, 
  

  

  p. 
  6 
  (part); 
  1950b, 
  p. 
  17 
  (part); 
  1951, 
  p. 
  10 
  (part). 
  

   Eunoe 
  depressa 
  Hartman, 
  1948, 
  p. 
  14 
  (part; 
  not 
  E. 
  depressa 
  Moore, 
  1905). 
  

  

  Description.- 
  — 
  Length 
  13-75 
  mm., 
  width 
  including 
  setae 
  7-35 
  mm. 
  

   Segments 
  36 
  or 
  37. 
  Prostomium 
  with 
  cephalic 
  peaks 
  short 
  and 
  blunt 
  

   or 
  lacking; 
  anterior 
  pair 
  of 
  eyes 
  anterolateral, 
  visible 
  dorsally. 
  An- 
  

   tennae 
  with 
  short 
  papillae. 
  Dorsal 
  cirri 
  with 
  long 
  papillae. 
  Body 
  

   flattened 
  ventrally, 
  strongly 
  arched 
  dorsally, 
  especially 
  in 
  anterior 
  

   part. 
  With 
  characteristic 
  bulbous 
  structures 
  on 
  inner 
  sides 
  of 
  bases 
  

   of 
  elytrophores 
  and 
  dorsal 
  tubercles. 
  Segmental 
  papUlae 
  quite 
  elon- 
  

   gate, 
  cylindrical, 
  directed 
  dorsally 
  between 
  the 
  parapodia. 
  Elytra 
  

   with 
  fringe 
  of 
  long 
  papillae 
  on 
  external 
  border. 
  Ely 
  tral 
  micro 
  tubercles 
  

   numerous, 
  close-set, 
  rather 
  low, 
  flattened, 
  semiglobose, 
  some 
  bifid; 
  

  

  